Actually it's quite believable, allot of blood shed over oil... Just remember the notion that just because you think it's a conspiracy theory doesn't disprove a conspiracy fact, even if the fact has yet to be proved.
I really don't like videos like this because, to me, they raise more questions about who made them than the issue they're discussing.
For example the term "whistle blower". Based on what I heard in the video, none of the people cited in this video fit that definition. They were businessmen, scientists, or military personnel whose connection to the spill didn't seem to be anything out of the ordinary, especially considering the thousands of professionals that were involved with the spill. I have no idea why Ted Stevens was in this. Because he received information from a whistleblower? The guy's a total dick. Anyone who knows anything about Stevens would understand that if he had acquired information that someone had put explosives on Deep Horizon, he wouldn't have said anything. He loved Big Oil.
All I'm suggesting is that people think critically about video's like this even if they play into our disdain for organizations like BP. Just my take.