New Tricks Make ISIS, Once Easily Tracked, a Sophisticated Opponent

[ahlam1399]

Islamic State terrorists **w use a mix of encrypted chat apps, face-to-face meetings, written **tes and misdirection, all of which leave few electronic clues for Western intelligence agencies.

أكثر... (http://www.wsj.com/articles/new-tricks-make-isis-once-easily-tracked-a-sophisticated-opponent-1473613106?mod=fox_australian)