Both Time magazine and CNN have suspended columnist Fareed Zakaria following the revelation of similarities between his recent writing for both news organizations on gun control and another reporter's writing in the New Yorker.

Newsbusters, a conservative media watchdog, flagged on Friday morning close parallels between a paragraph in an article in Mr. Zakaria's most recent column, about gun control, and an April 23 essay in the New Yorker by Jill Lepore.

Mr....