Ratings at “The O’Reilly Factor” are up, with 3.3 million Americans watching the Fox News host respond with bluster and name-calling to an investigative report that the “combat situation” he covered in the Falklands War was a minor riot 1,400 miles away in Buenos Aires. But Bill O’Reilly is now facing new questions about past claims. Mother Jones quoted CBS colleagues in Buenos Aires. Now, the liberal watchdog Media Matters for America is tracking coworkers at a Dallas TV station.