Police and witnesses say a man dressed in Batman's Joker costume and brandishing a knife on a Tokyo commuter train stabbed several passengers before starting a fire.
The former head of a Tokyo and Las Vegas investment firm was sentenced Thursday to 50 years in prison for bilking thousands of Japanese victims in what prosecutors called a $1.5 billion international Ponzi scheme that ranks among the largest-ever fraud cases in the U.S.
A senior World Health Organization official says Japan should ban smoking in all public places if it wants to successfully promote tourism and host the Tokyo Olympics in 2020.