This file illustration photo shows local street vendors walking by a lake in Hanoi, on a rainy day in 2003. Eight Vietnamese schoolgirls on Wednesday drowned while swimming in a lake on the outskirts ... more 

This file illustration photo shows local street vendors walking by a lake in Hanoi, on a rainy day in 2003. Eight Vietnamese schoolgirls on Wednesday drowned while swimming in a lake on the outskirts of Hanoi, according to state-run media less