CIA declassifies intel warnings to White House prior to 9/11 attack

By Katie Bo Lillis, CNN (CNN) — The now-infamous warning to then-President Bill Clinton was tucked at the bottom of a presidential intelligence brief delivered on September 10, 1998: A group associated with al-Qaeda leader Osama bin Laden “may fly an explosive-packed airplane into a US city.” In the end, there were no explosives. Just