The Boston FBI office was involved in some other investigatory screwup recently, but I cannot recall what it was at the moment.
The list is very long. The Boston FBI office has among other things reportedly helped local organized crime gangs find people they wanted to murder, framed other innocent people as gangsters and sent them away to prison for many years, teamed up with serial killer Whitey Bulger, ignored the Russian FSB warnings about the Boston Marathon Bomber, botched the response to that terror attack, managed to kill someone who may have been involved in that attack while interviewing him, ignored other people who probably were involved, and last but not least, apparently failed in their efforts to get to the bottom of why the strippers at some club were reportedly selling shirts with the Patriots logo on them.
The last item was reportedly what they were doing instead of tracking down the Tsarnaev brothers.