Or if they do, they’re not talking, so stop listening to rumors about an arrest in the Boston bombing.
This is from the FBI:
Contrary to widespread reporting, no arrest has been made in connection with the Boston Marathon attack. Over the past day and a half, there have been a number of press reports based on information from unofficial sources that has been inaccurate. Since these stories often have unintended consequences, we ask the media, particularly at this early stage of the investigation, to exercise caution and attempt to verify information through appropriate official channels before reporting.
That’s bureaucratese for STFU.