<ul data-eligibleForWebStory="true">The U.S. drone market faces scarcity as DJI struggles with regulatory and supply chain issues.Legislative scrutiny and CBP actions have led to shortages, with the Mavic 4 Pro unavailable.Security concerns and lack of clear policy leave distributors and consumers in uncertainty.U.S. policymakers cite Chinese-made drone security risks, fostering a need for industry diversification.