GUY RAZ, host: At least 200,000 gallons of crude oil a day - and perhaps much, much more -continue to gush into the Gulf of Mexico. Yesterday, crews did manage to get a 100-ton steel and concrete dome on top of the leak, but a slushy substance called hydrates formed and clogged it up. It's forced BP officials now to consider alternatives.</s>GUY RAZ, host: Now, if they can't get the containment dome to work, it could be weeks, even months, before the oil can be stopped. It's been nearly three weeks since the Deepwater Horizon exploded and sank into the Gulf of Mexico. Now, the crew aboard the rig are telling their story.</s>GUY RAZ, host: And tomorrow on MORNING EDITION, we'll broadcast an interview with one of the survivors. Christopher Choy told NPR's Joseph Shapiro how he tried to save a crewmate.</s>Mr. CHRISTOPHER CHOY (Deepwater Horizon Survivor): We got about halfway over to him from where we were. I don't know what was on fire over there, just like a giant acetylene torch. I mean, there was no way we could get through those flames. They started hollering to abandon the rig, and that was a real hard deal, doing that. I knew that we couldn't get to him. And they're hollering for everybody to leave. That's probably the hardest thing I've ever had to do in my  and the hardest decision I've ever had to make in my life.</s>GUY RAZ, host: That's Christopher Choy, one of the crewmembers of the Deepwater Horizon. You can hear the entire interview tomorrow on NPR's MORNING EDITION, and watch a video from the interview online at npr.org.
Another day, another 200,000 gallons of oil gushing into the Gulf of Mexico. Monday on Morning Edition, one worker talks about that fateful final night on the Deepwater Horizon oil rig.