Amazon warns U.S. FAA it could move more drone research abroad

By Deepa Seetharaman SAN FRANCISCO (Reuters) - Amazon.com Inc plans to shift more of its drone testing outside U.S. borders unless it gets quick permission from U.S. regulators to conduct outdoor trials, the company said in a letter to the Federal Aviation Administration late on Sunday. The U.S. online retailer has already started conducting outdoor tests "in other countries with regulatory environments more supportive of small (unmanned aircraft systems) innovation," according to the