DENVER Sep 22, 2005 — It sounds like a great idea: Let's just blast hurricanes like Rita and Katrina out of the sky before they hurt more people. Or, at least weaken the storms and steer them away from cities. Atmospheric scientists say it's wishful thinking that we could destroy or even influence something as huge and powerful as a hurricane. They abandoned such a quest years ago after more than two decades of inconclusive government-sponsored research. Private companies have conducted tests on a much smaller scale, but have made little progress despite initially claiming to erase storm clouds from...