New security measures have taken effect on all US-bound flights to comply with government requirements aimed at avoiding an in-cabin laptop ban. The changes mean that travelers could face brief interviews at check-in or at the gate. Several airlines have implemented different policies to comply, including “security interviews” for all passengers on US-bound flights. The changes come after a previous ban imposed by the US on carry-on devices from certain airports in Turkey, the Middle East and Africa. It was later rescinded and airlines were given a 120-day deadline to meet new regulations. Airlines for America, a US trade group, said the changes “are complex security measures” but praised US officials for giving airlines flexibility in meeting the new rules. The International Air Transport Association said the new measures “raise the bar” on aviation security, noting that the TSA has demonstrated flexibility and a willingness to work with industry to achieve the goals of the new measures