Wow, radiation is very misunderstood. If you have granite counter tops, or go to the beach, or take an airplane ride, etc., you get radiation dosage. You cannot avoid it. There is radiation from the ground in all parts of earth, there are cosmic rays from space, you probably eat bananas... if so, all give you radiation dosage. Without radiation, you would not have a major cellular repair mechanism for your DNA. Without radiation and oxidation you likely would not be here. In today's modern world it is amazing that the LNT theory still is believed even though many believe quite strongly that the data behind the cumulative dose LNT theory (with all radiation bad for you) is inaccurate.
As I understand it, France has already amended their radiation tables, and Japan has done so as well. Your body is a source of radiation dosage... you emit radiation and absorb it from yourself and others -- and you need those isotopes. Before worrying about your laptop, quit going to the beach if you fear low level radiation. There is a great deal of data showing some radiation exposure appears to reduce cancer rates, and that is pretty shocking in itself. It is called the radiation hormesis effect. the US NRC just this past week received a proposal to change the LNT model which holds that any radiation is bad for you.
Most people do not realize the benefits earth gets from radioactive decay. Uranium, and mort importantly thorium, in the core of earth keeps the core molten so the rotating planet produces a magnetic field that shields earth from a far stronger and deadly bombardment of solar and cosmic radiation that would likely strip the planet of life. You are quite well adapted to low level radiation.
"Things should be made as simple as possible, but not any simpler" A. Einstein