ship upright. and a series of enormous flotation devices attached to the ship's sides will help the cruise liner float away to a nearby port, hopefully all in one piece. >> roundabout the 20th of august, all the grouting and the mattresses should be underneath the bed of the "concordia." >> reporter: what makes the maneuver so risky, engineers behind the project say they only have one shot to make the deteriorating "costa concordia" float again. >> all right, that was erin mclaughlin reporting and, of course, we'll be watching closely. that's going to do it for me, fredricka whitfield. much more of the "newsroom" straight ahead with my colleague don lemon. don? >> hello, fredricka, thank you very much. we'll begin in california where a monster wildfire is creeping further into the iconic yosemite national park, the rim fire has doubled in size in the last day