something really cool

Ok, so one day i was listening to my local radio station when they started talking about how walmart exit signs contain a semi-radioactive gas that glows without electricity. The strange thing is that thousands of these signs have been stolen all around the US! it turns out these signs could be used against us! the gas in the signs has been known to cause cancer and birth defects! i am soooooooooooo freaked out by this! but are we at risk? Hmmmmm...? what do you think!