Here's one of Mitch McConnell's favorite talking points recently: Closing Guantanamo would result in the failure to keep terrorists "out of our neighborhoods and off of the battlefield." Sen. Dick Durbin does a great job pointing out the nonsense of Mitch's claims.
Mike Luckovich also has a good comic on this subject:
The Democratic Party is committed to keeping our nation safe and expanding opportunity for every American. That commitment is reflected in an agenda that emphasizes the security of our nation, strong economic growth, affordable health care for all Americans, retirement security, honest government, and civil rights.