about terror right now. we're learning that a teenager in pennsylvania was arrested and charged for supporting isis. more on that. >> reporter: that's right. this goes to the heart of the terrorism threat. a 19-year-old named jalil. he was charged with providing material support to isis. he tried to communicate through encryption with other isis supporters. he tried to help others who he believed were terrorists trapped in syria. it also alleges he had a technical -- tactical style to go bag that was discovered during a search of his home that had high capacity weapons, magazine, ammunition, knife and other survival items. authorities believe he potentially wanted to launch an attack in the u.s., john. >> a lot of electronic leads. pamela brown, thank you so much. a lot of reporting there. a lot to talk about with our panel. former fbi council member agent, peter burg, his book ou united