Despite images of the suspects at the scene and in official databases, the software could not put names to their faces, Boston's police commissioner tells the Washington Post.
General manager apologizes for link-sharing site's "dangerous speculation" in the days following the Boston Marathon bombing.
In his first extended comments to the public, Edward Snowden calls on the development community at South by Southwest to create more usable privacy and security tools.
Boston Police have asked for help via Twitter in tracking down the remaining bombing suspect, while also telling tweeps not to give too much away.
In what might be one of the more unfortunate closed-captioning snafus of recent years, a Twitter user posts a photo of what he says is a Fox affiliate mistakenly presenting the heart-object of certain nerds as suspect No. 2.
A report from AllThingsD suggests that Twitter is developing tools that will let users see what's going on nearby in real-time.