Labor union members shout a slogan during the May Day rally in Tokyo Wednesday, May 1, 2013. (AP Photo/Itsuo Inouye)

 

              Labor union members shout a slogan during the May Day rally in Tokyo Wednesday, May 1, 2013. (AP Photo/Itsuo Inouye)
Labor union members shout a slogan during the May Day rally in Tokyo Wednesday, May 1, 2013. (AP Photo/Itsuo Inouye)