At least they admit it. The bio tag for this Washington Post article reads: "Ismail Royer is an American convert to Islam and a research and program associate at the Religious Freedom Institute, a D.C. nonprofit organization. He served 13 years in federal prison for terrorism-related charges. Since his release, he has worked in the nonprofit sector developing strategies to promote religious liberty and undermine extremist ideology."
Which "extremist ideology"? Why not "...to promote religious liberty and undermine the jihad ideology"? Probably because what is meant by "extremist ideology" is "right-wing extremism," a label often attached to resistance to jihad terror.
Interestingly, the Washington Post bio for Royer doesn't note that before his incarceration, he worked for Hamas-linked CAIR.