Well not any robot will do in high radiation environment, since radiation tends to fry their circuits... They tried it in Chernobyl but it didn't really work,

Well not any robot will do in high radiation environment, since radiation tends to fry their circuits... They tried it in Chernobyl but it didn't really work, so they had to use humans to do it. Every soldier got to run in, move an item, run out and be dismissed from this nuclear cleanup duty, due to irradiation received in this one try.