US border agents are monitoring travelers from Japan for signs of radiation, but have found no harmful levels to date, the Customs and Border Protection agency said Thursday.
While stressing that it routinely checks all passengers arriving at US ports and airports, the CBP said it had issued guidance to border staff to pay specific attention to those arriving from Japan.
The agency "is monitoring developments in Japan carefully and is specifically assessing the potential for radiological contamination associated with" the quake and tsunami-crippled Fukushima nuclear power plant, it said.
"Out of an abundance of caution, CBP has issued field guidance reiterating its operational protocols and directing field personnel to specifically monitor maritime and air traffic from Japan," it said in a statement.
Read the rest of the story: US checks Japan travelers, finds no harmful radiation.