New York region's three major airports will next month install full-body scanners, which critics said would violate constitutional rights of American people, news reports said Friday according to dpa. The Port Authority of New York and New Jersey, which manages Newark Liberty in New Jersey and the John F Kennedy and LaGuardia International Airports, said the scanners will be put to use in September. The Washington-based Electronic Privacy Information Center, among the critics, is suing the US Department of Homeland Security to stop installation and use of the scanners, claiming they are unconstitutional. The US Transportation and Security Administration (TSA), which is responsible for security at airports, said the full-body scanners are able to identify non-metal weapons like explosives, which metal detectors cannot find. Full-body scanners are already installed at 41 US airports.