New U.S. assessment: U.S. strikes destroyed only one of three Iranian nuclear sites

We have new reporting on American air strikes on Iran's nuclear sites, finding only one of the three was destroyed. This is according to five current and former US officials familiar with this assessment. NBC News has also learned that President Trump rejected a more comprehensive strike on Iran that would have lasted weeks.Back with us is NBC's Julie Cirin, one of the reporters behind this exclusive reporting. He's covering a lot of editorial ground for us this morning. Julie, you are all over it.Tell us m ...