This should be a pretty good rebuttal to those jerkoffs who proclaim bitcoins are only ideal for money laundering etc. I'm sure these guys had heard of bitcoins and I'm sure they would have happily used them. But how the hell do you turn $7M into bitcoins when you're in honduras, and how do you do the reverse in Panama?
I am pretty sure that if they actually knew how bitcoins works they could easily find someone who could do the "favor" of exchanging $ 7M for, let's say, $ 5M worth of BTC and then in Panama another big guy to buy these $ 5 M for, let's say, $ 4M, and then you have almost half of your money with 0% chance of getting caught.