Mark Warner (from left) of Virginia, the top Democrat on the Senate Intelligence Committee, and Republican Chairman Richard Burr of North Carolina listen to testimony during a March 30 hearing in Washington, D.C. Win McNamee/Getty Images hide caption
Senate Select Intelligence Committee Chairman Sen. Richard Burr, right, confers with ranking member Sen. Mark Warner, left, during a hearing of the Senate Select Intelligence Committee Thursday in Washington, D.C. Win McNamee/Getty Images hide caption
Director of the National Intelligence James Clapper, seated at the table meets with the Senate Intelligence Committee Feb. 9, including Chairman Richard Burr, R-N.C. Burr and the committee's minority leader, Sen. Dianne Feinstein, D-Calif., are working on a bill that would force companies like Apple to help prosecutors unlock the phones of criminal suspects. Alex Brandon/AP hide caption