Noted by Geoff Nunberg, some linguistically relevant examples in Robert Rector collection of "The best (or worst) news media corrections of 2015", Pasadena Star-News 12/28/2015:
“Norma Adams-Wade’s June 15 column incorrectly called Mary Ann Thompson Frenk a socialist. She is a socialite.” — The Dallas Morning News.
“This post originally quoted photographer Tom Sanders as saying it takes him five years to get on the dance floor. It takes him five beers.” Slate magazine.
“Our panel listing the expected highlights at Glastonbury this summer catapulted into the festival’s headliners a band not so much obscure as unknown, even to those expert in Judaic contributions to rock. The group Frightened Rabbi should have been the Scottish band Frightened Rabbit.” — The Guardian.
And one that illustrates the potentially calamitous consequences of denasalization:
"Reporter Amanda Hess, in a story published Monday, acknowledges she wrongly wrote that ‘one in three black men who have sex with me is HIV positive.’ In fact, the statistic applies to black men ‘who have sex with men.’"— Washington Citypaper.
This one could have explained a lot:
“Correction: An earlier version of this article misidentified the number of years E.B. White wrote for The New Yorker. It was five decades, not centuries.” —The New York Times.
Some of the other corrections seem to hint at interesting background stories:
“Last week’s column mistakenly misidentified a source. The European Commission president is Romano Prodi, not Buffy the Vampire Slayer.”— Falsely attributed to the The Prague Post, but apparently this appeared in a clearly satirical article in 2001, long before the Prague Post even existed.
“Just to keep the record straight, it was the famous Whistler’s Mother, not Hitler’s, that was exhibited at the recent meeting of the Pleasantville Methodists. There is nothing to be gained in trying to explain how the error occurred.” —Titusville (Pa.) Herald.
“An article on Monday about a recall election facing Colorado lawmakers who supported gun-control legislation referred incorrectly to one of the Republican challengers expected to face John Morse, the State Senate president, on the ballot. The candidate, Bernie Herpin, is a former city councilman, not an author of erotic novels.” — New York Times.
[Update — unfortunately the list is fraudulent in various ways — at best the corrections are from several years in the past, not last year, and some (in particular the Prague Post citation) are simply wrong, having been taken from a satirical item in a different publication entirely…]