By Gordonskene May 3, 2012 11:56 am -
May 3, 1972 - Silver Mine Disaster in Idaho. Presidential Primaries. Voting Machine malfunctions in Ohio. Nixon appoints L. Patrick Grey to replace J. Edgar Hoover. Mass defection of South Vietnamese troops from Huè. Upcoming Primaries. Sen. Jackson withdraws from race. Humphrey big winner in latest primaries. Guilty pleas in Yablonski murders.