This is a Chinese version of Al-Qaeda. They have all these sleeper cells getting ready for random trailer attacks. The red book of Mao talks about an alliance with the Mexican multinationals to infiltrate these sleeper cells in American soil. This is really alarming, forget statistics, this single incident confirms the conspiracy beyond any doubt. Furthermore, this article confirms that every single Chinese (all 1 billion of them) that wants to get a trucking license is a threat (notice, a threat, not a potential threat).