You can’t take it with you. Actually, you can. But it’s not a good idea when you’re traveling, especially for the risk-averse.
We speak, of course, of cannabis; its use was approved by 57% of California voters in November 2016. Proposition 64, known as the Adult Use of Marijuana Act, allows the recreational use of marijuana in the Golden State; medical marijuana had been legal for about a decade before that.
Legal, it should be noted, in California. Not legal according to federal law, although President Trump has signaled his willingness to support legislation that, according to an L.A. Times article, would “end the federal ban on marijuana.”