Christopher Burt Wiltsee, 57, of Morgan Hill pleaded guilty this week to a charge of child pornography possession. This makes him the third ex-NASA employee to get busted fo having kiddie porn on his government-owned computer. According to the Gate: Wiltsee admitted that while employed at NASA, he used his government computer to download child pornography from the Internet. He admitted to possessing more than 600 images, including ones depicting sadistic and masochistic conduct,......