A bulletin from the National Terrorism Advisory System warns of a "heightened threat environment" in the U.S. following the military strikes on Iran's nuclear sites.
A woman convicted of murdering her husband discovers serious problems with some key evidence used against her at trial. "48 Hours" correspondent Erin Moriarty reports.
Three people are dead in North Dakota, and tens of thousands are without power in northern Minnesota and northwestern Wisconsin after powerful winds swept across the upper Midwest Friday and overnight Saturday.
