Should I be careful that the Asian foods I buy might have radiation from Japan?!
If you are in the U.S. you should know that the FDA has stopped importation of any foodstuffs from the regions affected by the recent earthquake and tsunami that compromised the nuclear facilities in the area. You have no cause to worry.
No food from Asia has been exposed to radiation.
The US has already put a temporary ban on any foodstuff that originated from the affected areas in Japan but most of Japan's food production occurs further to the west, or north in Hokkaido - both of which are way outside of the banned areas.
not at all,i think the japanese would stop exporting if there was any chance of any danger