America’s patchwork system of cannabis legalization laws has sown confusion at countless levels of society, and that includes air travel. Federal law prohibits anyone from possessing marijuana on airplanes, and TSA is required to enforce that policy. Yet 24 states have legal weed, including some with policies that make it easier for passengers to fly with marijuana. Although these pseudo-solutions are helpful for consumers, they also muddy the line between legality and illegality even further.