Twenty five years after al-Qaeda struck inside the U.S. homeland in shocking and tragic ways, federal authorities are warning that the threat from foreign terrorist organizations has hardly gone away, and in some ways is more challenging to stop now. ↧ Top FBI official warns 9/11 is still inspiring terrorists inside Am... Twenty five years after al-Qaeda struck inside the U.S. homeland, authorities are warning that the threat from foreign terrorist organizations has hardly gone away.