In 1975 Saigon fell to the Vietcong. Murder ensued. In fact, as a recent article notes, "April 30th, 2005 marks the 30th anniversary of the fall of Saigon. Three decades in which the Vietnamese communist government and proxies killed 7.5 million people."
At the time of the collapse of the South Vietnamese government anti-government anarcho-capitalist Murray Rothbard celebrated, just as today comtemporary Rothbardians such as the antiwar.com crowd celebrate American deaths in Iraq, and dissemble over Rothbard's calumny.
Tom Palmer explains and I argue here and here that anti-government is not pro-liberty, and that in the end neither was Rothbard. 7.5 million deaths underscores that peace without freedom is injustice to the innocent.