Delaware Democrat Sen. Joseph R. Biden Jr. strongly endorsed reviewing and possibly amending the Posse Comitatus Act of 1878, which prevents the military from exercising police powers in the United States.
The first time Biden suggested amending this law was after the Oklahoma City bombing.
For more information, please see:
http://www.washingtontimes.com/national/20020722-6619304.htm
http://library.northernlight.com/EC20020721310000013.html?cb=0&dx=1006&sc=0#do%20c