What does it take to negotiate the release of a captured Israeli soldier?

A search operation is underway to find 2^nd Lt. Hadar Goldin. Israeli Defense Forces say he was captured by Hamas in an attack that killed two of his fellow soldiers. It happened about 90 minutes after the cease-fire went into effect. This latest abduction recalls the ordeal of Israeli soldier Gilad Shalit, who was captured by Hamas eight years ago and held captive for more than five years. Gershon Baskin helped negotiate his release. He told Anderson it will be "very miraculous" if Goldin comes back alive.