FBI switches tactics in war against lone wolves. It's about time, right?

Confronted with efforts by the Islamic State to inspire Americans to commit violence, the authorities have changed their strategy again. In May, counterterrorism investigators began surveillance of Usaamah Abdullah Rahim, a 26-year-old man who been in touch with the Islamic State online. The authorities said they believed that while he was planning to stage an attack, he was not an imminent threat. But, Mr. Comey said that Mr. Rahim “woke up on the morning of June the 2nd and said ,‘You know what, I think today is the day,’ and just went to kill people.”

Specifically, F.B.I. agents, who were tapping Mr. Rahim’s phone, heard him say on June 2 that he planned to behead a police officer. When they tried to apprehend him, he pulled out a knife and the agents fatally shot him.

“That’s an example of how this is so different: There could be a plan to do something in the future, but the kind of folks these are, they’re unpredictable, unreliable,” Mr. Comey said.

Another recent example is Mohammod Youssuf Abdulazeez in Tennessee. The FBI thinks that he radicalized himself in sort of an extension program;

The group is essentially trying to crowdsource terrorism. Every day, the group sends messages on Twitter and on other social media platforms to thousands of Americans with simple instructions: Commit some type of violence in our name.

“They say: ‘Do whatever you can. If you can’t get a gun, find a rock and throw it at someone,’ ” said one senior law enforcement official.

http://www.nytimes.com/2015/07/28/us/fbi-emphasizes-speed-as-isis-exhorts-individuals-to-attack.html?_r=1