I think generally speaking hosting any information on decompiling is indeed illegal in the states. I think this issue came up with the hosting of how to defeat the DVD protection schemes.

Now, whether I'm right I can't gurantee but, it seems only logical that that decisions also reside over the idea of hosting documentation on how to detroy security measures.

but you could always remove the direct indication of what program should be cracked or what program is to be the target...The more vague the tutorial as to what should be cracked the safer you are. You can then file it under general knowlege about security.