(Top Story) Leaked ISIS Personnel Files Paint Picture of Group’s Recruits (NBC News)
Rubio, other conservatives pummel Trump with attack ads (Public Integrity)
Hillary Clinton wrongly says Bernie Sanders wants to delay the Clean Power Plan (Politifact)
FactChecking the Eighth Democratic Debate (Factcheck.org)
How to get a handle on potential risks posed by fracking fluids (Science Daily)
Left vs. Right Bias: How we rate the bias of media sources