ROSEIRES, Sudan - A torrent of water surged Tuesday into Sudan's Blue Nile river as President Omar al-Bashir inaugurated the expanded Roseires dam, which officials say should help develop one of the country's poorest, insurgent-hit regions. When Bashir arrived to open  the Arab-funded, Chinese-built expansion before thousands of dancing and flag-waving residents, an arc of water poured through the flag-draped dam, sending spray into the air and rapids bubbling. Military helicopters flew low overhead and troops were stationed throughout the area, about 550km southeast of the capital Khartoum. Rebels from the Sudan People's Liberation Movement-North have been fighting the government in Blue Nile state for more than a year.