>"The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."

This doesn't mean what you think it means.

It doesn't mean that the government can't take your stuff, full stop. It means that the government can't take your stuff without due cause and process.

Both of which were followed in this case, it appears. The indictment was posted here: http://news.ycombinator.com/item?id=2451482