In last week's Metal Gear Solid Ground Zeroes footage, there was apparently some concern amongst fans about Snake's age. Hideo Kojima responded to the concerns via Twitter today.
This is the controversial scene:
Wrote Kojima, there have been many Tweets stating that with the white hair, Snake appears to be really old in this sequence.
It turns that that this is just an illusion. As Kojima explained, the hair appears white because of the back lighting effect.
Kojima later provided a pic of goggle-free Snake from a different angle: