In over half of U.S. states and on the federal level law enforcement, after arresting you but before you’ve been convicted of any crime, can take a DNA sample from you. This week the U.S. Supreme Court heard arguments about whether this kind of search violates 4^th Amendment protections and is constitutional.  Bob speaks with New York Times reporter Adam Liptak about the what this kind of DNA samples mean for personal privacy.  

As Dylan Byers noted on Politico earlier in the week, complex legal opinions about byzantine legislation aren't the ideal topic for instant TV news analysis. The pundits and legal analysts you hear later today will have to wing-it early on but if you feel like asserting your intellectual independence (and are able to take a longish lunch) there is a way you can reasonably do a little analysis of your own.