Back in October, D.C. police searched the Burlieth residence of CBS News radio anchor Howard Arenstein after several neighbors had complained that Arenstein, along with his wife Orly Katz, had been growing weed in the home’s backyard. The cops proceeded to find several cannabis plants — some at least eight feet tall — and 12 ounces of packaged marijuana during the search. Open-and-shut, right? Well, not so much. Rend Smith reports that charges against both Arenstein and Katz were dropped without prejudice this morning because prosecutors were unable to locate the only witness they were planning on calling, likely the arresting officer. (Why the prosecutors didn’t think about possibly investing in a backup witness, just in case something happened, wasn’t clear.) Sounds like Arenstein and Katz got real lucky: their rumored defense — that the dope was for medicinal use — probably wouldn’t have gotten them too far.