I don't know why people are so worked up about Megaupload being shut down. The case was ruled in the same manner that VCR manufacturers weren't found liable for the potential for copyright infringement, similarly ski equipment makers can't be sued if their balaclavas are used to rob banks. Finally, the operators were US citizens under US law.
The CAPTCHAS, forced waiting and hoops you had to jump through to start a download meant I rarely used Megaupload if I could avoid it. I can still appreciate this ruling as setting a dangerous precedent though.
UPDATE: If true, the operators of SOPA will have to quicky get used to this.