It's a debate that's been around for a while, but now, with so many states legalizing cannabis, the problem seems to be worse.  The government is testing cannabis, but only cannabis grown is special facilities.

The issue:  The quality and potency of government grown marijuana is nothing like what's found in stores and on the street.  Some say this makes the government's studies an exercise in futility.  Is it futile?  Enjoy our conversation as we explore this and other topics this week.