April 5
Columnist Victor Riesel, a crusader against mob infiltration of unions, was blinded in New York City when an assailant threw sulfuric acid in his face. He was also an FBI informer for decades, a proponent of the McCarthy era blacklisting that weakened unions for over a generation, and a crusader against unions connecting with anti-war 
student activism in the 1960's and 70's - 1956
Some 14,000 teachers strike Hawaii schools, colleges - 2001
A huge underground explosion at the Upper Big Branch Mine in Montcoal, W. Va., kills 29 miners. It was the worst U.S. mine disaster in 40 years. The Massey Energy Co. mine had been cited for two safety infractions the day before the blast; 57 the month before, and 1,342 in the previous five years - 2010
More info & ammo for unionists is available
online from Union Communication Services.
New York Times Tech Guild Ends Strike, Continues Contract Fight
ZeniMax Video Game Workers Walk Off the Job in Maryland and Texas
