Robert Spencer, known for his exposure of the role of Islamic theology in global jihad, says he was poisoned by a leftist in Iceland who recognized him at a restaurant after he had given a speech in the island nation's capital.

Spencer writes in a report obtained by WND that a young Icelander came up to him at a restaurant and called him by name, shaking his hand and saying he was a big fan.

Shortly after the encounter, he writes, another Icelander came up to him and shook his hand and said, "F--- you." Spencer decided to leave after that confrontation.

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"But the damage had already been done," he writes. "About 15 minutes later, when I got back in my hotel room, I began to feel numbness in my face, hands and feet. I began trembling and vomiting. My heart was racing dangerously. I spent the night in a Reykjavik hospital."

Spencer, along with directing Jihad Watch, a program of the David Horowitz Freedom Center, is author of the New York Times bestsellers "The Politically Incorrect Guide to Islam (and the Crusades)" and "The Truth About Muhammad." His latest book is "The Complete Infidel's Guide to Iran."

Spencer says a hospital test confirmed that one of the Icelanders – probably the one who said he was a big fan, because he got much closer – had dropped drugs into his drink.

"I wasn't and am not on any other medication, and so there wasn't any other explanation of how these things had gotten into my bloodstream," he explains.

Robert Spencer reveals Islam’s ongoing, unshakable quest for global conquest and shows why the West today faces the same threat as the Crusaders did

Spencer says he was ill for several days after the incident but made his way to Reykjavik’s police station, where a police official took immediate steps to obtain the restaurant’s surveillance video and identify the suspects.

"Iceland is a small country. Everyone knows everyone else. And so as it happened, I was quickly able to discover the identity, phone number, and Facebook page of the primary suspect, the young man who claimed he was a 'big fan,'" Spencer writes. "I don't intend to call him. Icelandic police will be contacting him soon enough, if they haven’t done so already."

Spencer has led seminars on Islam and jihad for the FBI, the United States Central Command, United States Army Command and General Staff College, the U.S. Army’s Asymmetric Warfare Group, the Joint Terrorism Task Force, the Justice Department’s Anti-Terrorism Advisory Council and the U.S. intelligence community.

He co-hosted the free-speech event in Garland, Texas, in May 2015 that was attacked by jihadists allied with ISIS.

The most likely scenario in Iceland, Spencer says, is that "whoever drugged me, heard that a notorious 'racist' was coming to Reykjavik, by chance saw me in the restaurant, and decided to teach me a lesson with some of the illegal drugs that are as plentiful in Reykjavik as they are anywhere else."

Spencer says he should have seen it coming because his visit had "triggered a firestorm of abuse in the Icelandic press, all based on American leftist talking points."

"Every story about my visit," he writes, "had the same elements: the notice that the [Southern Poverty Law Center] claims that I purvey 'hate speech,' which is a subjective judgment used to shut down dissent from the establishment line; the fact that I am banned from Britain, with no mention of the key detail that I was banned for saying that Islam has doctrines of violence (which is like being banned for saying water is wet) and for the crime of supporting Israel; and the false claim that I incited the Norwegian mass murderer Anders Breivik to kill (in reality, I’m no more responsible for Breivik’s murders than the Beatles are for Charles Manson’s). After the event, one article even featured a big photo of Breivik, but quoted nary a thing I said that evening."

Spencer says it's clear that "jihad and Islamization are not subjects that Icelandic politicians and media opinion-makers want Icelanders to discuss."

The lesson learned from his trip to Iceland, he says, is "media demonization of those who dissent from the leftist line is direct incitement to violence."

"By portraying me and others who raise legitimate questions about jihad terror and Shariah oppression as racist, bigoted Islamophobes, without allowing us a fair hearing, the media in Iceland and elsewhere in the West is actively endangering those who dare to dissent."

Robert Spencer reveals Islam’s ongoing, unshakable quest for global conquest and shows why the West today faces the same threat as the Crusaders did