Travelers have been given a false sense of security. Bomb detector wands are a scam.
Although Iraq and the UK have banned the devices, Thailand's Prime Minister and Army Chief are in denial. The fraudulent bomb detector devices have been used throughout Southeast Asia by major hotel chains, airports, and department stores.
Western governments, ostensibly concerned about protecting their nationals from terrorism, have failed to alert the travel and tourism industry that these devices are ineffective.
You can find out more about these bomb detectors here.