Allan Pinkerton affiliated with the notorious Banditti of the Prairie. After observing their movements for some time he informed the local sheriff, who arrested them. This later led to Pinkerton being appointed, in 1849, as the first police detective in Chicago, Cook County, Illinois. In 1850, he partnered with Chicago attorney Edward Rucker in forming the North-Western Police Agency, which later became Pinkerton & Co, and finally Pinkerton National Detective Agency, still in existence today as Pinkerton Consulting and Investigations, a subsidiary of Securitas AB. Pinkerton's business insignia was a wide open eye with the caption "We never sleep." As the US
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