World notes: Feb. 2, 2008

South Africa: Energy crisis looms Australia: PM hears about Cuban medical program Belgium: Rethinking biofuels Vietnam: Workers strike Iraq: Heroin production rises Rwanda: Military aid continues Canada: Puts U.S. on torture list

Voters choose unity

COLUMBIA, S.C. — The race is now at full throttle going into the Feb. 5 Super Tuesday primaries and caucuses in 24 states.

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