The United States Embassy in London was the diplomatic mission of the United States of America in the United Kingdom. After Lieutenant Chris Tanner was framed for Derrick Yates drone attack, he was taken here to be questioned. With the help of Adrian Cross and Open Cell, Jack Bauer tried to infiltrate the Embassy as a member of the Diplomatic Security Service to find Tanner's flight key and proof of the hacking. However, Cross betrayed Bauer and he had to create a riot amongst anti-drone protestors to escape into the Embassy. ("Day 9: 1:00pm-2:00pm")