The dangers of cell phone use have long been debated but for the first time a clear connection between cell phone use and higher risk of cancer has been established in a study by Tel Aviv University.
Whole-body x-ray backscatter scanners – which flood the body with x-rays in an effort to detect explosives and other weapons – have been deployed at U.S. airports since 2007. Although originally announced as a screening tool for a limited number of passengers, the government's goal now is to use them for all U.S. airline passengers. Many passengers do not realize that they may “opt out” of the scans and "participate" in a full-body pat-down instead.