Since when is this ok?

This is a chart of six ads that Mitt Romney has unveiled since the third debate. All of them have been debunked. They are still on the Romney Campaign's YouTube channel and Romney's campaign site. No retraction has been issued for any of them, not even the Chrysler whopper. Since when is this ok?

Air Date	Title of Ad / Claim	Fact check result / site
Oct 23	Apology Tour Claims Obama went on an apology tour	"Obama's quotes have been selectively trimmed for political purposes. Or they were not much different than sentiments expressed by Bush or his secretary of state… Four Pinocchios" WashPo_Fact_Checker
Oct 23	The Clear Path Claims Romney will create 12 million new jobs	Mitt Romney's 'new math' for jobs plan doesn't add up. WashPo_Fact_Checker
Oct 23	Highest Responsibility Claims Navy is smallest since 1917	Obama's Navy has more ships than at any point in the last four years of the Bush administration. Mother_Jones
Oct 28	Who will do more Claims Chrysler is moving Jeep jobs to China.	Message From Sergio Marchionne Regarding Jeep Production: "Chrysler Group's production plans for the Jeep® brand have become the focus of public debate. I feel obliged to unambiguously restate our position: Jeep production will not be moved from the United States to China." Chrysler_Blog
Oct 30	Crushed By Your Policies Pennsylvania-only ad: Claims Romney loves coal	2/6/03: Massachusetts Gov. Mitt Romney attacks the Salem coal plant for killing people. Youtube
Oct 30	Can't afford another term Claims Obama "gutted the work requirement for welfare."	The Romney campaign has homed in only on the fact that the work requirement could be waived by the government; they haven't spoken to the alternatives governors might offer as a replacement. NBC_News

h/t Steve Benen, TRMS