We've told all of the 'it's so cold' jokes, but a Fox News reporter took it one step further.  All of the Arctic Vortex talk and freezing weather has reporters finding new ways of showing just how cold it is.  This report comes from Iowa where it's so cold that the reporter was able to hammer a nail with a banana that was left outside for a short wile and was frozen solid.  She also gives us tips on leaving pets outside in this cold weather as well.