This is courtesy of Federation of American Scientists, via their blog/eMail Secrecy News.
A CRS report is one created by the Congressional Research Service at the request of the US Congress, or a committee therein, or whatever.
CRS reports are not generally available to the public. Steven Aftergood of Secrecy News of the F.A.S. fixes this.
I will not give any quotes. Click on this link to see a recent CRS report on IS or ISIL.
You have a right to know what’s roughly best information on IS in the USA right now.