radioactive water under control at fukushima daiichi. workers are filling in underground tunnels, after an earlier method failed. riots have been breaking out in cities across the u.s. after a grand jury decided not to indict a white police officer for the fatal shooting of an unarmed black teenager. the protests first flared in the state of missouri, where the incident occurred. several hundred people gathered in front of a police station in the city of ferguson, after the ruling some hurled stones at the building. others set fire to police vehicles, shops and restaurants have been looted and set on fire. police forces have responded with tear gas. officials say they have arrested 29 people. there have also been reports of gunfire. 18-year-old michael brown was shot dead in august. on monday a jury of nine white and three black locals decided the officer should not face criminal charges. president barack obama issued a statement soon after the decision. we are a nation bui
update a time honored tradition. security is tight in china s tiananmen square on the 25th anniversary of the crackdown on pro-democracy demonstrators. hundreds of people were killed in the incident. chinese leaders aren t allowing any memorial events, and they re trying to muffle all criticism. nhk world has the story from beijing. reporter: tee rnman square is crowded with tourists, but many police officers are keeping watch over the scene. officials have installed metal detectors at all entrances to the square. the police are frisking people for weapons. these measures have been in place since at least tuesday, but on wednesday, security officials began searching everyone s bags, as well. they ve also deployed more officers. and we can see police vehicles inside the square. the police questioned a british man who was taking pictures. he later told us he has been asked to show i.d. on three separate occasions. chinese officers blacked out the nhk world premium channel a