Bin Laden is denying involvement, and it's quite possible that he wasn't directly involved. It's more likely that someone came up to him and said "Hey I want to bomb the WTC" and he said "I've got bombs, I've got passports, I've got people willing to die. Need any?"
Nonetheless, we need to get him. The Afghan govt. claims they are not supporting him, but not saying they're doing anything to stop him, either. Hell, all they said was that they cut telephone lines to his camps. Time for Bush to make good on his statement that "No distinction will be made between the terrorists and those that harbor them". Just get on the phone and say "You have 48 hours to turn him over to us. There will be concequences if you do not comply. Goodbye."