Guest: David Hook. David Hook was the guest for this special program in order to discuss the unusual topic of security regulations for space tourism. As President of his company, Planehook Aviation Services in San Antonio, Texas, David specializes in security work for general aviation, but he has quietly expanded this interest to space tourism. During the first segment of the program, David referenced the FAA/AST regulations dealing with security issues and told us what they mean and how they are likely to be interpreted and applied.