Iran vows 'harsh' response to U.S. killing of top general

Iran has vowed "harsh retaliation" for a U.S. airstrike near Baghdad's airport that killed Iran's top general and the architect of its interventions across the Middle East, as tensions soared in the wake of the targeted killing. The killing of Gen. Qassem Soleimani, the head of Iran's elite Quds Force, marks a major escalation in the standoff between Washington and Iran, which has careened from one crisis to another since President Donald Trump withdrew from the 2015 nuclear deal and imposed cri