TEXT: TEHRAN, IRAN - JANUARY 03: Protesters hold up photographs as people demonstrate after the U.S. airstrike in Iraq that killed Iranian Revolutionary Guard Gen. Qasem Soleimani on January 3, 2020 in Tehran, Iran. Iran has vowed 'harsh retaliation' for the U.S. airstrike near Baghdad's airport that killed Tehran's top general as tensions soared in the wake of the targeted killing. (Photo by Majid Saeedi/Getty Images)