WikiLeaks.ch appears to have been blocked in the US. This could of course be caused by some temporary error, but if it is not, it is a pretty big attack on freedoms of expression and freedoms of the press. The first amendment dictates that press organizations have the right to publish and WikiLeaks should by all likelihood be considered a media organization. The US government therefore violates the constitution if it is in some form involved in the blocking of Wikileaks.ch. This is serious business.
This follows from the prior closing of the domain WikiLeaks.org, which seems to have also been ordered by the American government. This information is of course speculative at best and may be wrong, but the reality is that the website loads in Europe, but not in the US.
Update: WikiLeaks.ch seems to be working in the US again.