title: US drone research hits regulatory turbulence.
authors.forename: Heidi
authors.initials: H
authors.lastname: Ledford
mesh_terms: D000401:Aircraft / Q000331:legislation & jurisprudence*; D000818:Animals; D004784:Environmental Monitoring / Q000295:instrumentation / Q000331:legislation & jurisprudence; D012106:Research / Q000295:instrumentation* / Q000331:legislation & jurisprudence*; D012371:Robotics / Q000331:legislation & jurisprudence*; D014481:United States; D037041:United States Government Agencies / Q000331:legislation & jurisprudence