12 percent of global drug users come from the U.S., which is the most drug-infested country. In Philadelphia, it's not uncommon to see people shambling on the streets like zombies. The phenomenon in Philadelphia epitomizes drug abuse in the U.S. The issue is related to multiple factors such as US economic interests, lobby groups, and social culture, etc. ，and it also highlights the failure of the US government's social governance.

　　Executive Producer｜Wei Jing

　　Producer｜Jiang Lili

　　Editor-in-Chief ｜Liang Shengwen

　　Illustrator｜Cao Zhen

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