The Federal Reserve signaled last month that they might be willing to push the unemployment level below its so-called natural rate -- that is, the "lowest level of unemployment at which inflation remains stable."

In doing so, they'd be taking a page out of Alan Greenspan's playbook, who oversaw a decline in the unemployment rate to 3.8% following the bursting of the technology bubble in 2000.

People outside the Fed are concerned about two things. First, many believe that Greenspan's easy monetary policy led to the housing bubble -- and they're seeing an analogous bubble forming in stocks right now. And second, by pushing the unemployment rate below the natural rate, there's fear that inflation will rear its ugly head.

In the video below, Motley Fool analysts Michael Douglass and John Maxfield discuss why the Fed itself isn't worried about these two things.