2015 Event New anti-austerity Prime Minister Alexis Tsipras halts the public asset privatizations required under Greece's bailout agreement with its foreign creditors; Standard & Poor's has lowered its rating on Greek national debt from stable to negative 2000 Event Supreme Court halts Florida vote recount 1992 Event ASPCA stops Santeria ceremony in Bronx halts sacrifice of 42 animals 1979 Event U.S. halts Iranian oil imports and freezes Iranian assets 1976 Event Government halts swine flu vaccination prog following reports of paralysis 1972 Event Nixon halts bombing of North Vietnam and announces peace talks 1964 Event Rolling Stone concert in Ireland halts after 12 minutes due to riot 1950 Event Chinese offensive halts at Chongchon River, North Korea