Congresswoman Jan Schakowsky (D, IL), Chairman of the Subcommittee on Oversight and Investigations, who called for the investigation, stated that the investigation was intended to address CIA failures to inform Congress fully or accurately about four issues: C.I.A. involvement in the downing of a missionary plane mistaken for a narcotics flight in Peru in 2001, and two "matters that remain classified", as well as the rumored-assassinations question. In addition, the inquiry is likely to look at the Bush administration's program of eavesdropping without warrants and its detention and interrogation program.[64] U.S. Intelligence Chief Dennis Blair testified before the House Intelligence Committee on February 3, 2010, that the U.S. intelligence community is prepared to kill U.S. citizens if they threaten other Americans or the United States.[65] The American Civil Liberties Union has said this policy is "particularly troubling" because U.S. citizens "retain their constitutional right to due process even when abroad." The ACLU also "expressed serious concern about the lack of public information about the policy and the potential for abuse of unchecked executive power."[66]