U.S., Japan say NK must honor previous nuclear deals

http://www.cbsnews.com/8301-202_162-57579493/u.s-japan-say-nk-must-honor-previous-nuclear-deals/

North Korea Nuclear Talks Offered By U.S., Japan

http://www.huffingtonpost.com/2013/04/14/north-korea-nuclear-talks-us-japan_n_3080430.html

Japan, U.S. agree cannot let North Korea have nuclear arms: Japan foreign minister

 
http://www.reuters.com/article/2013/04/14/us-korea-north-japan-idUSBRE93D04420130414