Tuesday, March 2, 2010; 11:37 PM

By JUAN CARLOS LLORCA
The Associated Press

GUATEMALA CITY -- Authorities arrested Guatemala's anti-drug czar and national police chief Tuesday in a case involving stolen cocaine and slain police, acting just two days before U.S. Secretary of State Hillary Rodham Clinton arrives to discuss the drug war.

The detentions were the latest embarrassment for Guatemala's embattled anti-narcotics effort and came amid U.S. complaints that corruption is impeding the battle to stop the flow of drugs north through Central America.

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