Yongda Huang Harris arrived at LAX wearing a bulletproof vest and flame-resistant pants, having checked in a suitcase full of weapons.
The 28-year-old was on a stopover on a trip from Japan en route to Boston, and had an array of suspicious items in his luggage.
They included a smoke grenade, knives, body bags, a hatchet, a collapsible baton, a biohazard suit, a gas mask, billy clubs, handcuffs, leg irons and a device to repel dogs.
The alarm was raised when U.S. Customs and Border Protection officers noticed he was wearing a bulletproof vest under his trench coat, along with flame-retardant pants and knee pads.
But no such red flags had been waved when Harris boarded in Japan.
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