i'm keiko kitagawa in tokyo with the latest at this hour. >>> u.s. secretary of state hillary clinton says she'll encourage american businesses to invest in myanmar. she says she wants u.s. investment to help the people of myanmar grow their economy and reform their political system. >> the united states is putting in place protections to ensure that the increased investment we would like to see advances the reform process. >> clinton met with myanmar's president, thein sein. she asked him to improve the business environment for u.s. investment. u.s. government leaders eased their sanctions on myanmar on wednesday as a reward for pro-democracy reforms. they gave u.s. companies permission to invest in myanmar with certain conditions. u.s. firms can't deal with companies owned by the military, with people who abuse human rights or with companies that do military trade with north korea. >>> a chain of rocks in the east china sea is casting a shadow over diplomatic relations between tokyo and beijing. the object of the dispute, the senkaku islands known