The group referred to itself as a revolutionary organization of women and men whose purpose was to carry out a series of attacks that would achieve the revolutionary overthrow of the Government of the United States. Their attacks were mostly bombings of government buildings, executed after calling in bomb-threats and making sure their target buildings were evacuated.
The Weathermen imploded shortly after the U.S. withdrawal from Vietnam in 1973, which saw the general demise of the New Left, of which Weatherman had been a part.
Further information about this individual or organization may be available in the Special Collections Research Center Wiki: Weather Underground Organization
12 july 2007