"Cases of homegrown Islamist extremism in the U.S. continue to be an issue of concern," according to the House Homeland Security Committee's monthly report of terrorism in America, which has been tracking an increase in homegrown jihadists for some time. "Since 2013, there have been 154 homegrown jihadist cases in the United States" from at least 30 different states.
The committee's monthly report has tracked an uptick in this activity for some time
june-TTS.pdf
A full list of those arrested and convicted in June, as well as a summary of other Western terror plots can be found in the committee's full report, July-Terror-Threat-Snapshot.pdf
http://freebeacon.com/national-security/homegrown-terror-threats-increasing/