also on the software are john d. oes, those seen in child porn whose identities are unknown. they're hoping this app will lead to name and an arrest. >> twitter going public revealing it has filed confidential documents for an initial public offering and is taking advantage of federal laej lej slaigs passed last year that allows companies to avoid subordinate ipo documents publicly. most revenue comes from advertising. estimated $582 million this yeerk twitter made announcements in a tweet which said we submitted fr a mand ipo this, tweet did z not constitute an offer of securities for sae. all that in under 140 characters. afterward tweeted now back to work. >> naming the western span of the bay bridge an offer to name after willie brown. the decision not sitting well with some people. a lawsuit filed today claiming state lawmakers violated rules by naming the span after a living person. >> a fa ill ti to be named after someone that person must be deceased. willie brown ain't dead. >> you taught say smu tu to people whom you think have done something. i'll be damn if you can