In the U.S., according to industry officials, the Federal Communications Commission's reluctance to authorize sales of hardware able to disrupt radio links has hobbled growth of the nascent counterdrone industry. Only a handful of U.S. airports have advanced drone-detection programs under way, according to industry officials, and nearly all are in the testing phase. Congress, however, has instructed the Federal Aviation Administration to develop a strategy to permit wide use of counterdrone technologies across airports. Sponsors of major sports events, some concerts and large open-air gatherings, including the New Year's Eve celebration in New York's Times Square, have called on counterdrone techniques to ensure safety. But like most airports, such entities generally refrain from publicly spelling out their plans.