Last month, I had one of the most chilling experiences of my career as a reporter-blogger. I had planned on taking a day off from writing on ThinkProgress.org and going on a short vacation to a small town in Virginia. Instead, I ended up being followed from my apartment and ambushed by O’Reilly Factor producer Jesse Watters and his cameraman.

It all started on March 1, when I wrote a post reporting that Bill O’Reilly was slated to speak at a March 19 benefit for the Alexa Foundation, a group that supports rape survivors. I noted that O’Reilly had made controversial comments in 2006 about Jennifer Moore, a woman who was raped and murdered. In my interpretation, he seemed to imply that it was partially her fault by calling her “moronic,” and adding:

Now Moore, Jennifer Moore, 18, on her way to college. She was 5-foot-2, 105 pounds, wearing a miniskirt and a halter top with a bare midriff. Now, again, there you go. So every predator in the world is gonna pick that up at two in the morning. She’s walking by herself on the West Side Highway, and she gets picked up by a thug. All right. Now she’s out of her mind, drunk.

That three-week-old post was the furthest thing from my mind when my friend and I drove two hours from Washington, D.C. to Winchester, Virginia, on March 21. But when we left the hotel, two men crossed the street toward me, calling out my name. They stood in front of me, put a microphone in my face, and asked me why I was causing “pain and suffering” to rape victims (by writing my March 1 post). What I didn’t immediately realize—but later found out—was that they were sent by O’Reilly.

The scariest part of this experience was how O’Reilly’s crew found me. I hadn’t told anyone where I was going that weekend, and the hotel reservation wasn’t in my name. However, my friend remembered seeing a tan SUV following us for much of the trip; that same vehicle was then parked on the street where I was ambushed. I can only ascertain that O’Reilly’s men found my home address, staked out my apartment, followed me for two hours into rural Virginia, and then ambushed me.

My editor and I immediately decided that I would write up my experience and expose O’Reilly’s ambush “journalism” on Monday morning. The outrage was instantaneous. Even conservatives—who don’t generally agree with me ideologically—thought O’Reilly had gone too far. During his segment that night on the incident, O’Reilly never mentioned how he had his crew follow me or the fact that he never first contacted me for a statement. He also never actually showed what I originally reported. Instead, O’Reilly accused me of deliberately attacking the Alexa Foundation (which I never did) and made up a conspiracy theory about ThinkProgress being in a cabal with NBC News.

Since the incident, I have often wondered why O’Reilly targeted me—or for that matter, anyone else at ThinkProgress. He has ambushed nearly forty other people, but they have usually been bigger catches: The New Yorker’s senior editor Hendrik Hertzberg, General Electric CEO Jeffrey Immelt, Rep. Robert Wexler (D-FL), and even CJR editor Mike Hoyt. I seemed to be the first blogger to really get under O’Reilly’s skin.

I think the answer lies in what ThinkProgress does. O’Reilly thinks we’re “insects” who run a “hate Web site.” I have a different view. I believe that we’re a new type of journalists. We still do traditional journalism work—reporting, breaking news, explaining complicated policies to the public. However, some of the most exciting parts of the job are less traditional—rapid-response research, pressing for progressive policies, and promoting media accountability.

ThinkProgress certainly isn’t alone in this type of work, and O’Reilly recognizes that. One of Watters’s questions to me was why, in my March 1 post, I linked to an item by the progressive media watchdog group Media Matters. Watters said that we were all part of a “smear pipeline.” Many progressive blogs now spend a considerable amount of time monitoring Fox News, highlighting controversial commentary, and fact-checking the network’s reporting.

Amanda Terkel is Deputy Research Director at the Center for American Progress Action Fund and Managing Editor of ThinkProgress.org.