视频简介
Former Green Beret Louis Stevens returns to his hometown of Miami after completing military service in Brazil, only to learn that his old high school has become a haven for gangs and drug dealers. After Stevens uses his capoeira skills to kick several drug dealers off of the school property, Kerrigan, one of Stevens' old teachers, sees the impact that Stevens has on the student...。Consumers love - and live on - their smartphones, tablets and laptops. A cascade of new devices pours endlessly into the market, promising even better communication, non-stop entertainment and instant information. The numbers are staggering. By 2020, four billion people will have a personal computer. Five billion will own a mobile phone. But this revolution has a dark side, hid...。
