The terrorist threat level stood at orange, and Jim Yannotta looked a little green. He was fighting airsickness in a Los Angeles Department of Water and Power helicopter. The aging Bell Long Ranger bucked fierce winds on a security tour of the city’s reservoirs, storage tanks and aqueducts — all considered possible terrorism targets. “We’ve got daily patrols on the ground and by air,” said Yannotta, the DWP’s assistant director for water quality and operations. As the chopper swooped over the Santa Monica Mountains, he swallowed as if he had ingested a bad oyster, his hand on his stomach. “Everybody is being a lot more vigilant.” Braving bumpy-sky nausea isn’t in Yannotta’s job description. But things have come to this. Full Story