Miniscule this and that of radiation. Why do they got to lie.?

Low concentrations of radiation found in milk and water. Whats next vegetables? Why do they keep on lying that it's not harmful, when your being exposed to it almost every single day? Think about it, the particles of radiation that accumulate in the air and sooner or later form into rain, and the rain in turn falls on crops, the ground water that the U.S.A uses and drinks out of is being contaminated by the Iodide whatever radiation, and who consumes it, People. ANd how do we know when where going to be free from this type of radiation, like when is Japan's nuclear disaster of the power plant's going to be controlled? Could it be months, yrs? This overall is going to affect us someway. ANd why the heck did the U.S.A gov't lie and say that we have nothing to worry for, that the radiation WILL NOT MAKE IT TO OUR COUNTRY. AND later the European system detects radiation and leaks out the word out before the U.S gov't did. ANd why couldn't we find those Potassium Iodide pills? why are we out? I'ma look again and make sure I get my hands on them. But seriously wake up pple. I'm just a big thinker. Also how can i trust these pple saying it's low concentrations of radiation, when I can't see proof before my eyes and they have already lied to us, like the pple in Japan.