It's a simple issue of standing up to terrorists. And it must be done.
If that date doesn't fall meet with Sony's approval, I'd suggest either February 16, his father's birthday or April 15 his grandfather's. Alternatively, September 9 to coincide with the creation of North Korea or July 4 for our Independence day or September 11 to coincide with the terror attack that the terrorists that made Sony pull this film referenced.
Terrorists must NEVER win.