Update: See Obama's remarks here.
Live stream. Up next Janet Napolitano.Update: Obama's remarks have been postponed until 4:30 pm.
White House national security adviser James Jones says Americans will feel "a certain shock" when they read an account being released Thursday of the missed clues that could have prevented the alleged Christmas Day bomber from ever boarding the plane.
President Obama "is legitimately and correctly alarmed that things that were available, bits of information that were available, patterns of behavior that were available, were not acted on," Jones said in an interview Wednesday with USA TODAY. Read more.