James Clapper James Clapper

Director of National Intelligence James Clapper (center) talks with National Security Agency and Cyber Command chief Adm. Michael Rogers prior to testifying before the Senate Armed Services Committee. Evan Vucci/AP hide caption

toggle caption
Evan Vucci/AP

Director of National Intelligence James Clapper testifies during a hearing before Senate Select Intelligence Committee on Wednesday. Alex Wong/Getty Images hide caption

toggle caption
Alex Wong/Getty Images

National Intelligence Director James Clapper waits for a hearing of the Senate Judiciary on Wednesday. Brendan Smialowski/AFP/Getty Images hide caption

toggle caption
Brendan Smialowski/AFP/Getty Images

Director of National Intelligence James Clapper has apologized for a "clearly erroneous" response to a question about surveillance on Americans. The question was asked before the Senate Intelligence Committee in March. Susan Walsh/AP hide caption

toggle caption
Susan Walsh/AP