Iranians mark US embassy siege.
Thousands of school children and students in Tehran have marked the anniversary of the hostage-taking at the American embassy in 1979.
A huge red flag saying "Death to America" was burned.
there is little sign of remorse.
Instead the speakers asked why America had not learned its lesson from the hostage-taking.
Why has America not learned its' lesson from 1979?
http://news.bbc.co.uk/2/hi/middle_east/6116358.stm