Thailand is facing an epidemic of drug smuggling in a complex international racket that appears too massive and entrenched for authorities to stop. Police said on May 2 that they had seized 1 million illicit methamphetamine pills, weeks after discovering nearly 50 million legal tablets to treat common ailments had been stolen from Thailand's hospitals, to make powerful speed drugs to sell to addicts. An additional 2 billion similar tablets to treat common colds have been smuggled in from Taiwan and South Korea, also to make illegal drugs, authorities said.