; (2) the origin of the drugs seized; (3) the airport at which the drugs were seized; (4) the manner in which the drugs were seized; and (5) the manner in which the drugs were transported. (c) Use of data; recommendations for additional data collection In conducting the study required by subsection (a), the Comptroller General shall use all available data. If the Comptroller General determines that additional data is needed to fully understand the extent to which illegal drugs enter the United States through international airports in the United States, the Comptroller General shall develop recommendations for the collection of that data. (d) Submission to Congress Not later than 180 days after the date of enactment of this Act, the Comptroller General shall submit to the appropriate committees of Congress a report on the study conducted under subsection (a) that includes any recommendations developed under subsection (c). 5012. Government Accountability Office review of unmanned aircraft systems (a) In general Not later than 1 year after the date of enactment of this Act, the Comptroller General of the United States shall submit to the appropriate committees of Congress a report examining law enforcement challenges posed by the use of unmanned aircraft systems for illegal drug trafficking. (b) Contents The report submitted under subsection (a) shall examine how unmanned aircraft systems are being used to transport illegal drugs across the international borders of the United States, including— (1) how international drug traffickers have used unmanned aircraft systems to fly packages of illegal drugs into the United States; (2) how international drug traffickers have used unmanned aircraft systems to survey international borders, providing intelligence to smugglers on vulnerabilities in the border security efforts of the United States