Personally I think its time we tip our hat, come out of the closet and admit he died in 2001 due to complications from an HIV infection years ago.
Place the onus on the al quada leaders to disprove the fact their glorious coward leader is dead. I also think it would be a huge blow to the organization as they scramble to discredit the reports and make up tales as to why bin laden cannot make an appearance on any islamic news channel.
The fact that number two can and will make appearances would disprove its much too dangerous for number one to do the same.