eclectro writes "The EFF representing 2600 has appealed the district court's decision that banned the posting of the DeCSS source code on websites. The case will be argued in April." EFF's brief makes good reading. If this is new to you, we've posted a few things about the DeCSS cases before.
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"