Pinkerton (detective agency) Pinkerton (detective agency) Pinkerton, founded as the Pinkerton National Detective Agency, is a private security guard and detective agency established in the United States by Scotsman Allan Pinkerton in 1850 and currently a subsidiary of Securitas AB. Pinkerton became famous when he claimed to have foiled a plot to assassinate president-elect Abraham Lincoln, who later hired Pinkerton agents for his personal security during the Civil War. Pinkerton's agents performed services ranging from security guarding to private military contracting work. Pinkerton was the largest private law enforcement organization in the world at the height of its power. During the labor strikes
U-S-A! Show", where it may spontaneously and without apparent reason follow the show's standard cheer of "Jer-ry, Jer-ry!" and is also often delivered by Homer Simpson on "The Simpsons" as a celebration of almost anything, often accompanied by honking of his car's horn and flashing of its headlights. The chant is also used on "It's Always Sunny in Philadelphia" when the gang come up with a plan. U-S-A! "U-S-A!" is a chant of the United States of America's initials popular in expressing U.S. pride and supporting U.S. national sports teams. It is also used in other community events, such as at