Mayor Mike Bloomberg weighs in former football star William ' The Refrigerator ' Perry for the 88th annual Nathan 's Famous Fourth of July Hot Dog Eating Contest .
Ex-Bears star William ' the Refrigerator ' Perry competes in the Nathan 's Famous Fourth of July Hot Dog Eating Contest Friday .
The memorandum analyzed lawful activities , such as recruiting demonstrators , and illegal activities , such as using fake documentation to get into a secured site .