Some drugs, including widely used cholesterol fighters, tranquilizers and anti-epileptic medications, resist modern drinking water and wastewater treatment processes.

包括广泛采用抗高胆固醇、镇定剂和抗癫痫在内的一些药物会抵制现代饮用水及废水处理工艺。

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American drugs fighters wonder why Jorge Carrillo Olea, a former state governor suspected of protecting kidnappers and traffickers, is still free nearly two years after he stepped down, and why Mario Villanueva, another state governor suspected of trafficking, has not been found since he fled last March, just before his governor's term (and immunity from arrest) ended.

ECONOMIST: Mexico: Drugs shock | The

The guerrillas, who finance their operations through drugs trafficking, were thought to number some 16, 000 fighters, but analysts suggest their ranks have fallen to about 9, 000.

BBC: Kidnapped Colombian governor found with throat slit