U.S. converts to Islam are an emerging security threat. My latest in PJ Media:

Sean Andrew Duncan is a 21-year-old convert to Islam living in Virginia, and is under investigation for ties to the Islamic State (ISIS).

In the course of the investigation, agents found that Duncan was in possession of child pornography, and was seeking a second wife while still being married to his first — a 36-year-old physician named Zakiya Sadeq whom he had met at Islamic gatherings.

Duncan embodies a phenomenon that authorities so far have determinedly ignored: the lethal convert to Islam.

After all, where did Sean Andrew Duncan get the idea to do all these things? Could these ideas have had anything to do with his new, peaceful religion? Could it be from Islam that he got the idea that murdering non-Muslims was a righteous act (cf. Qur’an 2:191, 4:89, and 9:5)? That prepubescent children could be objects of erotic interest (Muhammad, the supreme model of conduct for Muslims, consummated his marriage with the nine-year-old Aisha when he was 54)? That polygamy was moral and worth pursuing (cf. Qur’an 4:3)?

Or would thinking such things be “Islamophobic”?

Duncan is not by any means the only convert to Islam to attract law enforcement attention. In San Diego just last week, another convert to Islam — Marchello Dsaun McCain — was sentenced to ten years in prison for possessing an illegal firearms cache and lying to investigators. He had planned to join the Islamic State. McCain’s brother Douglas was killed while waging jihad in Syria in 2014.

Then there is Everitt Aaron Jameson, aka Abdallah abu Everitt ibn Gordon al-Amriki. According to the Associated Press, this convert to Islam planned to use pipe bombs at San Francisco’s popular Pier 39 on Christmas Day to force people to flee into an area where he could shoot them. Al-Amriki, a former Marine, declared: “I was a soldier in the Kuffar [unbeliever] army before I reverted. I have been trained in combat and things of war. In Sha Allah [Allah willing] anything of that nature, as well as funding. Anything for Allah.”

He said that he wanted to replicate recent jihad mass murder attacks in New York City and San Bernardino. When FBI agents searched his home shortly before Christmas, they found a statement reading:

I Abdallah adu Everitt ibn Gordon have committed these acts upon the Kuffar, in the name of Dar al Islam [the House of Islam], Allahu Akbar! You all have brought this upon yourselves. There is no innocent Kuffar! Each and every Kuffar in this Nationalistic, Godless society has a hand in this. You’ve allowed Donald J. Trump to give away Al Quds to the Jews. Both You and he are wrong, it belongs to the Muslemeen. We have penetrated and infiltrated your disgusting country. These acts will continue until the Lions of Islam overtake you. Turn to Allah, make tawbah [repentance] and fight with us, the soldiers who fight in the day and night. Allah SWT is most forgiving, I am not. Long live Isil, Long Live Abu Bakr al-Baghdadi. Abdallah abu Everitt ibn Gordon al-Amriki.