What was the House Un-American Activity Committee

Explanation:

It was a commission set up to identify potential communists within the government and rout them out. This was during the time that communism was considered un-American.

begins a massive airlift of food, water, and medicine to the citizens of the besieged city

president thomas jefferson hoped that the embargo act of 1807 would the united states by demonstrating to britain and france their dependence on american goods, convincing them to respect american neutrality and stop impressing american seamen. instead, the act had a devastating effect on american trade.