The House Intelligence Committee formally announced Friday that it will probe whether the CIA broke the law by failing to inform Congress about a top secret assassination program reportedly aimed at targeting leaders of al-Qaeda.

Committee Chairman Silvestre Reyes, D-Texas, said the probe will be part of a wide-ranging investigation about the way in which the CIA informs Congress about its covert activities and other matters.

Reyes, in announcing the wide-ranging probe Friday, said he had consulted with the panel’s ranking Republican minority leader, Rep. Pete Hoekstra, and other committee members. Reyes said he and concluded that an investigation into “possible violations of federal law, including the National Security Act of 1947” were warranted. Under that law, the CIA must keep Congress “fully and currently informed” via classified briefings about its intelligence activities.

“This investigation will focus on the core issue of how the congressional intelligence committees and Congress are kept fully and currently informed,” Reyes said. “To this end, the investigation will examine several issues, including the program discussed during Director Panetta’s June 24th notification and whether there was any past decision or direction to withhold information from the Committee.”

Rep. Jan Schakowsky, D-Ill., said Friday that her subcommittee will handle some part of the investigation into the CIA’s assassination program, which may have extended beyond al-Qaeda targets, according to veteran investigative reporter Seymour Hersh of the New Yorker.

“Why was there such a high-level determination to keep it secret? And how may it have changed over all these years? And why was it immediately ended as soon as the current CIA director learned of it?” she said, describing the areas of focus for her subcommittee.

Reyes’ aides said the investigation will also delve into the use of torture by CIA interrogators and contractors against alleged “high-level” detainees, the agency’s destruction of 92 interrogation videotapes, 12 of which depict acts of torture against two prisoners, and the Bush administration’s domestic surveillance program.

These aides added that the probe will also look into claims made by former CIA official Mary O. McCarthy, who accused senior agency officials of lying to members of Congress during an intelligence briefing in 2005 when they said the agency did not violate treaties that bar, cruel, inhumane or degrading treatment of detainees during interrogations, according to a May 14, 2006, front-page story in The Washington Post.

“A CIA employee of two decades, McCarthy became convinced that ‘CIA people had lied’ in that briefing, as one of her friends said later, not only because the agency had conducted abusive interrogations but also because its policies authorized treatment that she considered cruel, inhumane or degrading,” The Washington Post reported.

On the matter of domestic surveillance, Bob Graham, the committee’s former Democratic chairman, said in 2005 that Vice President Dick Cheney, CIA Director George Tenet and National Intelligence Director Michael Hayden (who later headed the CIA) lied to him about the extent of the Bush administration’s domestic surveillance and never provided him with a full and complete briefing.

In an interview with ABC’s “Nightline” on Dec. 15, 2005 – after the New York Times disclosed the existence of the warrantless wiretapping program – Graham said he attended meetings in Vice President Dick Cheney’s office in 2001 and discussed surveillance activities, but added that neither Cheney nor then-National Security Agency Director Michael Hayden spoke about a plan to spy on Americans. (CIA Director George Tenet also took part in the meeting.)

“The issue was whether we could intercept foreign communications when they transited through U.S. communication sites,” Graham said. “The assumption was that if we did that, we would do it pursuant to the law, the law that regulates the surveillance of national security issues. …

“There was no suggestion that we were going to begin eavesdropping on United States citizens without following the full law. There was no reference made to the fact that we were going to use that as the subterfuge to begin unwarranted, illegal — and I think unconstitutional — eavesdropping on American citizens.”

Graham suggested that Cheney and the intelligence officials had lied to him and other members of congressional intelligence panels.

Cheney and other Bush administration officials – aided by Republican lawmakers – responded to Graham’s comments with a fierce counterattack. In another “Nightline” interview on Dec. 18, 2005, Cheney said Graham, as well as other members of Congress knew that the administration intended to spy on the phone calls of some Americans.

“He knew,” Cheney said. “I sat in my office with Gen. Hayden, who was then the head of NSA, who’s now the deputy director of the National Intelligence Directorate, and he [Graham] was briefed as long as he was chairman of the committee, or ranking member of the committee.”

Last week, an unclassified report prepared by inspectors general of five federal agencies said George W. Bush’s surveillance program was far more expansive than his administration had publicly revealed and that much of it was concealed from Congress.

The issue of the CIA’s use of torture and whether the agency fully informed top lawmakers on the Senate and House intelligence committees in 2002 and 2003 about techniques used against “high-level” detainees was called into question a few months back when House Speaker Nancy Pelosi claimed she was never told that the CIA tortured prisoners at secret “black site” prisons using methods such as waterboarding.

But a CIA document turned over in May to Rep. Pete Hoekstra, the House Intelligence Committee’s ranking minority member, that contained the dates and a summary of the briefings given to a select group of congressional leaders, including Pelosi as well as Graham, about “EIT’s” or “enhanced interrogation techniques…employed” against “high-value” detainees.

Republicans seized upon the document as a way of showing that Democrats were complicit in the Bush administration’s torture program by not raising objections to the use of specific interrogation methods when they were briefed.

But the briefing document turned over to Hoekstra was rife with errors. Three of the four dates in which the CIA said it had briefed Graham don’t match his records.

“When I asked the CIA when was I briefed, they gave me four dates, two in April and two in September of ‘02. On three of the four occasions, when I consulted my schedule and my notes, it was clear that no briefing had taken place, and the CIA eventually concurred in that. So their record keeping is a little bit suspect,” Graham said.

One of the disputed dates for a briefing on interrogations – in April 2002 – fell in the same month as one of the supposed briefings on surveillance. In both cases, Graham said no briefings took place.

Moreover, Graham said he was not told about the CIA’s torture techniques, which the agency’s records claim were explained to Graham and Sen. Richard Shelby, R-Alabama.

The CIA document also alleged that Pelosi was given a full accounting of the torture program, but Pelosi said in May that the CIA briefers obscured the fact that the agency already had begun subjecting prisoners to the near-drowning of waterboarding and was using other torture techniques.

The CIA also erred in 2006 when a four-page memo from Director of National Intelligence John Negroponte was turned over to Congress several that contained the dates lawmakers were briefed about the surveillance program, briefings that began shortly after President George W. Bush signed a highly classified executive order that removed some legal restrictions against spying on US. citizens.

The memo contained four dates that alleged Graham – along with Pelosi, then ranking Democrat on the House Intelligence Committee, and their Republican counterparts, Rep. Porter Goss and Shelby – were briefed on Oct. 25, 2001, Nov. 14, 2001, April 10, 2002, and July 8, 2002. A cover letter accompanying Negroponte’s letter said the briefings took place at the White House.

But Graham, who famously keeps a detailed journal of his daily schedule, said he checked those dates against his own records, which revealed no briefings on Oct. 25, 2001 and April 10, 2002. The memo had claimed Graham was the only lawmaker briefed on April 10, 2002. On July 8, 2002, the document said Graham and Shelby were briefed.

“When I got those dates, I went back to my notebooks and checked and found that on most of the dates there were no meetings held,” Graham said in September 2007. “In fact, in several of them, I wasn’t in Washington when the meetings were supposed to have taken place. So I stand by what I said.”

Graham said he did attend briefings on the two other dates but he told the Washington Post “there was no discussion of anything [about spying on Americans' telephone calls] in the meeting with Cheney.”

“I came out of the room with the full sense that we were dealing with a change in technology but not policy,” Graham said.

Briefing lawmakers last month about a covert CIA assassination program that was recently shut down, CIA Director Panetta said it was Cheney who ordered the agency not to inform Congress about the covert activity for eight years, according to several lawmakers, including Senate Intelligence Committee Chairwoman Dianne Feinstein, and numerous media reports.

Last week, after attempts to get Panetta to change a statement he made in May in which he said it was not the CIA’s “policy or practice to mislead Congress” failed, Reyes and other Democrats on the intelligence committee publicly released a letter they sent the CiA director characterizing his briefing to them.

The letter was sent by Reyes to Hoekstra and other top lawmakers on the intelligence panel. It said CIA officials “affirmatively lied” to the panel, presumably about the assassination program, and misinformed the committee about on numerous occasions about other intelligence matters.

Republicans, including Hoekstra, said Democrats were trying to cover for Pelosi’s accusations that the CIA lied to her. On Friday, Hoekstra said neither he nor his Republican colleagues would support an investigation into the CIA.

“At no time will the Republicans of this committee agree to or take part in congressional Democrats efforts to tear down the CIA to provide cover for Speaker Pelosi,” Hoekstra said in a statement Friday.

However, the committee will also probe accusations that the CIA lied to Congress, as revealed in an agency watchdog report, about the shooting down of an airplane over Peru in 2001 carrying American missionaries. Hoekstra was the lawmaker who accused the CIA of lying to Congress about the incident, a fact that he has since distanced himself from.