Comment Re:Sorry... (Score 1) 573
Well as for the scientific knowledge, it's not actually true that no one has researched this well. In fact research into the cellular mechanisms of radiation damage are a huge research field. Insects esp. cockroaches have all been studied, well perhaps not with the same zeel that we study/kill mice (mice are better human analogues than insects). Any way, a well worded google scholar search reveals some of the research, some of which is accessible without journal subscriptions. Please note that cockroaches are found to be some of the most radiation sensitive insects!
Good Brief Summary: http://www.abc.net.au/science/k2/moments/s1567313.htm
Google Scholar Search: http://scholar.google.com/scholar?hl=en&lr=&safe=off&client=safari&q=radiation+%22cockroach%22&btnG=Search