You're tsalking apples and oranges.
There is no need to have a security clearance to see a dead Bin Laden.
Why should Senators be able to see something I cannot? I paid for that mission and so did you. And Bin Laden was the enemy of all of us.
And a Senator with a security clearance is a non sequitur. They are the biggest security leaks known to man.
Like it or not, Senators have clearance.