NY native missing for in Mexican wilderness

An American has been missing in rugged wilderness of central Mexico for four days after going on a hike wearing only a T-shirt and shorts and with little food and water, according to his wife and a Mexican official. The search for Hari Simran Singh Khalsa, 25, began Tuesday after he went missing in Tepoztlan -- about an hour south of Mexico City -- and has included 150 searchers and three helicopters.