Bombing Iran would shore up its regime

President Donald Trump has escalated his threats to use military force amid Iran’s violent crackdowns on protests, which have killed as many as 20,000 Iranians. In recent days, he has called for regime change in the Islamic Republic and ordered the Abraham Lincoln carrier group to the Middle East, its arrival expected later this month.   But air strikes on Iran would undermine the very protestors Trump purports to defend. Worse, it would expose U.S. forces in