United Airlines can permanently ban passengers who don’t wear headphones

United Airlines has updated its "Contract of Carriage" to include a line that requires passengers to wear headphones while listening to audio and video content on flights, CBS News reports.

Under the updated contract, United can "refuse transport on a permanent or temporary basis" to passengers who don't follow a list of rules, which now includes listening to audio without wearing headphones. The policy also states that United can remove those passengers from the aircraft "at any point."...