U.S. acknowledges killing of four U.S. citizens in counterterrorism operations The Obama administration acknowledged Wednesday that it has killed four Americans in overseas counterterrorism operations since 2009, the first time it has publicly taken responsibility for the deaths. Although the acknowledgment, contained in a letter from Attorney General Eric H. Holder Jr. to Congress, does not say how the four were killed, three are known to have died in CIA drone strikes in Yemen in 2011: Anwar al-Awlaki, his 16-year-old son and Samir Khan. Read the letter Read the attorney general's letter to the Senate Judiciary Committee acknowledging four U.S. citizens have been killed in counterterrorism operations. Karen DeYoung and Peter Finn Attorney General Eric Holder informs Congress of deaths one day before major speech by President Obama. Sari Horwitz and Jenna Johnson Ibragim Todashev implicated himself and Tamerlan Tsarnaev in a triple homicide two years ago, officials say. Despite passage of bill calling for aid, Foreign Relations Committee should watch its step on pushing Obama. The opinion involves the collection of communications under the revised Foreign Intelligence Surveillance Act. Leak-investigation documents related to Fox reporter James Rosen were erroneously kept under seal. The fourth - Jude Kennan Mohammad, a Florida native indicted in North Carolina in 2009 - was killed in Pakistan, where the CIA has operated a drone campaign against terrorism suspects for nearly a decade. His death was previously unreported. Holder's letter came the day before President Obama is due to deliver a major speech designed to fulfill a promise in his State of the Union address in January to make elements of his controversial counterterrorism policies more transparent and accountable to Congress and the American public. Obama is also under pressure to explain how he intends to make even modest progress on other priorities that were centerpieces of a pledge he made at the beginning of his first term. At the top of that list is closing the Guantanamo Bay prison, where 103 of the 166 detainees still in custody are on a hunger strike. The administration is planning to restart the transfer of the detainees, 86 of whom have been cleared to leave. A White House official said without elaboration that Obama "will announce a number of specific steps to advance" his goal of closing the facility. In addition to disclosure of the four killings, Holder wrote that Obama has approved classified briefings for Congress on an overall policy document, informally called the "playbook." The document, more than a year in the making, codifies the administration's standards and processes for its unprecedented program of targeted killing and capture of terrorism suspects outside of war zones. Nearly 400 drone strikes, in Pakistan, Yemen and Somalia, have been launched by the CIA and U.S. military forces during Obama's presidency. Although the administration has acknowledged the existence of the drone program and outlined its justification under international and domestic law, specific operations are considered classified. The secrecy surrounding the program - including the criteria for choosing targets - has led to widespread opposition from international law and human rights advocates and, increasingly, from Congress and the public. Although the administration has stressed the precision accuracy of drones, independent groups have charged that thousands of civilians have been unintentionally killed. Congressional and public criticism reached a crescendo this year when Obama nominated John Brennan, then his principal counter­terrorism adviser, as CIA director. Before they would confirm Brennan, lawmakers demanded access to Justice Department legal opinions justifying the killing of U.S. citizens overseas without due process or other constitutional protections. Although the documents were made available to the Senate and House intelligence committees, other members insisted that they had a right to the information.