By NASSER KARIMI, JON GAMBRELL and ZEINA KARAM Associated Press

The blowback over the U.S. killing of a top Iranian general is mounting. Iran says it is abandoning the limits in the 2015 nuclear deal.

And Iraq's Parliament is calling for the expulsion of all American troops from Iraqi soil.

The twin developments could bring Iran closer to building an atomic bomb and enable the Islamic State group to stage a comeback in Iraq, making the Middle East a far more dangerous and unstable place.