@SMLaughna @denise_dewald They did prior to the federal mandate.
It was airlines who asked for the federal mandate because they wanted help with enforcement.
@他们在联邦政府授权之前就这么做了。
是航空公司要求联邦授权，因为他们希望在执法方面得到帮助。
@SMLaughna @denise_dewald They did prior to the federal mandate.
It was airlines who asked for the federal mandate because they wanted help with enforcement.
@他们在联邦政府授权之前就这么做了。
是航空公司要求联邦授权，因为他们希望在执法方面得到帮助。