Your daily look at late-breaking news, upcoming events and the stories that will be talked about today:1. WEBSITE OF BIG BITCOIN EXCHANGE GOES OFFLINEThe page's disappearance follows reports that the exchange based in Japan suffered a significant theft — a possible fatal blow to efforts to gain legitimacy for the virtual currency.2. MEDICAL SLEUTHS ON TRAIL OF RARE, POLIO-LIKE SYNDROMEDoctors aren't sure if it's a virus or something else that's caused more than a dozen children in California to suffer paralysis to one or more limbs.3. WHO'S A WANTED MAN IN UKRAINEThe interim government issues a warrant for the arrest of fugitive President Yanukovych in the killing of protesters last week in Kiev.4. MEXICO ANGLING TO TRY DRUGLORD FIRSTAuthorities set in motion a legal process that makes it unlikely Joaquin "El Chapo" Guzman will face charges in the U.S. anytime soon.5. WHY DEFENSE CHIEF WANTS TO DOWNSIZE ARMYHagel says the U.S. can afford a smaller military so long as it retains its technological edge.6. CONGRESS'S LONGEST-SERVING MEMBER EVER IS CALLING IT QUITSEighty-seven-year-old John Dingell, a Michigan Democrat, says he's relinquishing the seat he's held since 1955.7. RED FLAG RAISED ON TESTOSTERONE DRUGSA consumer group calls on the FDA to add a warning label to the popular medicines because there's evidence they can increase the risk of heart attack.8. WHAT'S NEXT CHALLENGE FOR SOCHIWith the Olympics over, the city needs to make sure the expensive stadiums used for the games don't turn into white elephants.9. SETH MEYERS DEBUTS AS HOST OF NBC'S 'LATE NIGHT'AP Television Writer Frazier Moore reports that the comic suffered a few opening-night butterflies, then found his stride as the show went on.10. HAROLD RAMIS, CREATOR OF COMEDY CLASSICS, DIES AT 69The writer-director-actor created a hugely influential body of work, including such films as "Caddyshack," "National Lampoon's Animal House," "Ghostbusters" and "Groundhog Day."