pet projects. cbs s nancy chen reports. and, like a scene out of a movie, nasa s plan to deliberately crash a spacecraft into an asteroid at 14,000 miles per hour. cbs s mark strassmann shows us why. the threat is very real. this is the cbs evening news with norah o donnell, reporting from the nation s capital. o donnell: good evening to our viewers in the west and thank you for joining us as we start a new week together. tonight, mandatory evacuation orders are already underway for hundreds of thousands of florida residents as hurricane ian gains strength as it bears down on the state s west coast. residents are filling up sandbags and flocking to grocery stores, clearing out the entire inventory of bottled water and other nonperishable food items. outside gas stations, long lines of cars wrapped around the block as residents waited for fuel for their vehicles and generators, ahead of expected power outages. tonight, ian is nearing the western tip of cuba as a st