Dixie, yes the US supplied Bin Laden (obviously The Bush family also has a long business relationship with them as well) and those "freedom fighters with weapons and training in the 80's.

The US also trained and armed Syrian freedom fighters at bases in Jordan - many of whom subsequently joined Isis. Saudi Arabia also directly sponsor many jihadi groups in Iraq and Syria, and obviously the US has a close relationship with the Saudis....why should Iran now have to send its troops in to sort out the mess? They'll no doubt turn into Western "allies" soon.....

Said it before though, the US doesn't really choose its "friends" wisely....