The upcoming street demonstration by left-behind parents and their supporters, coinciding with Vice President Biden’s visit to Japan, will be held on August 23 in Tokyo. ┬áThis article in Modern Tokyo Times provides more details and background:

http://moderntokyotimes.com/2011/08/21/japan-and-child-abduction-demonstration-on-aug-23-in-tokyo-during-the-visit-of-v-p-biden/