Iranian lawmakers chant anti-American and anti-Israeli slogans to protest against the U.S. killing of Iranian top general Qassem Soleimani, at the start of an open session of parliament in Tehran, Iran, Sunday, Jan. 5, 2020. Soleimani's death Friday in Iraq further heightens tensions between Tehran and Washington after months of trading attacks and threats that put the wider Middle East on edge. (Source: Mohammad Hassanzadeh)