All I would say is if you have any bitcoins or cash at MtGox; get it out now! You can't fight the US gov, you just have to stay out of their way.
I don't believe the attack is on mtgox, .mt gox follows all the rules they are ment to. the attacks will be on company's who are not following aml laws. this is not a problem for bitcoin or mtgox.
To many people have a dig at mtgox but the truth of the matter is bitcoin would still be tiny without it. mtgox was not always this big company, it began very small. All these people who complain about mtgox why don't you make a service better? you can't? then why are you dissing one of the only company's who are really trying?
Don't just spread FUD and hate if you are adding nothing.