Causes: It is caused by yeast called Malassezia, which normally exist in small numbers on the skin. Certain conditions however, can cause the overgrowth of the yeast, causing the development of white and reddish-brown spots on skin.
The 3 men all escaped and made it back to the Britain.   The Great Escape shown in the film happened in March 1944 having been planned first in January 1943. It consisted as per the film of 3 tunnels Tom Dick and Harry, Tom being discovered by the Gestapo.
What lies beneath: The secret passageway, Armageddon-proof bunker (and basement bowling alley) under the President's feet. The White House already has a number of tunnels â the exact number is, of course, classified. The most well known is the underground corridor that leads to the President's Emergency Operations Center (PEOC), a supposedly nuclear-proof bunker located six stories under the East Wing.