This aerial view shows water leaving the Tarbela Dam spillway in Tarbela on August 24, 2010.  The United States and other countries worldwide have now pledged a total of more than 700 million dollars towards flood relief in Pakistan, a senior US official said.  AFP PHOTO/Farooq NAEEM (Photo by FAROOQ NAEEM / AFP)
This aerial view shows water leaving Pakistan's Tarbela Dam spillway in Tarbela. AFP

Pakistan's ambitious top judge hosts telethon as he tries to crowdsource major dam projects