The United States has declared air supremacy over all of Iraq, asserting its warplanes could fly anywhere with impunity, even though an Air Force attack plane was shot down near Baghdad.

Four employees of the Reuters news agency were injured today when an American tank apparently fired a shell at Baghdad’s Palestine Hotel, the base for most foreign correspondents covering the war in the Iraqi capital.

Three journalists were hurt today in a blast at Baghdad’s Palestine Hotel, the base for most foreign correspondents in the Iraqi capital.