Efforts to correct mistakenly(?) reported facts are counterproductive:

...journalists’ attempts to correct misinformation is unlikely to sway public perceptions, according to a series of experiments by a Duke University political scientist.

“What we found is that corrections are ineffective for the group most likely to have the misperception,” said Brendan Nyhan, a Ph.D. candidate in Duke’s political science department. “Even worse, we found that those people may actually end up believing in the misperception more strongly after hearing a correction.”

.... Read more…