Here is a good example:  Microwaving food in plastic containers can release dioxins which can cause breast cancer.  This was proven to be fake news.  It was an e-mail gag that went viral and was reported as fact all over the news outlets and still gets repeated.  Sloppy journalism like this should be criminal.  A fine print, tiny paragraph retraction, buried in the back pages does not rectify their mistake.  An oops, my bad, lets pretend it never happened is as bad as creating the lie in the first place.  The lie should be investigated and receive same print as the original sloppily investigated article.