They are both high profile (for activists/hackers). Public twitter accounts, etc.

Wiki: "In 2012, the FBI attempted to entrap Kobeissi using Sabu"

http://log.nadim.cc/?p=65

http://bits.blogs.nytimes.com/2012/03/12/a-hacker-charms-and...

Fuckers. (sorry, I couldn't resist)