Bomb attack in Iran ignites simmering tensions

Two explosions at a ceremony in Iran have killed almost 100 people and injured at least 211 in what appears to be the deadliest militant attack to target Iran since its 1979 Islamic Revolution. The ceremony marked the fourth anniversary of the United States' 2020 killing of General Qassem Soleimani in Iraq. No group has claimed responsibility for the blasts, but Iran's government is promising a strong response.