John O'Connor and Trevor Aaronson: A state inquiry found that online educator K12 Inc. employed three teachers in Florida who lacked proper certification to teach some subjects.
In January 2011, when the FBI looked into the alleged Boston Marathon bomber and dismissed him as a potential threat, agents in the Boston field office pursued another person they suspected could be a terrorist.
FCIR Associate Director Trevor Aaronson's new book documents how the FBI has built a vast network of informants to infiltrate Muslim communities and, in some cases, cultivate phony terrorist plots.