U.S. Customs and Border Patrol agents at Detroit Metro sent a traveler back to China after the passenger initially claimed he was not carrying any prohibited items. A subsequent inspection found armor and tactical apparel. Federal Agents also searched the residence of the traveler and found “a significant cache of firearms and other regulated paraphernalia”.
CBP determined the passenger was inadmissible to the United States and returned him to China.
I don’t understand how he could be sent back, the article says the traveler had a residence where they found a lot of firearms. Maybe he is on a student visa? Most likely, this individual was just a fan of guns – as private gun ownership is prohibited in China, he probably enjoyed being able to collect firearms here in the US. Given the high-profile mass shootings, the CBP agents are probably being extra cautious.