KANSAS CITY, Mo. (AP) — Rappelling into a bull-riding rodeo event , crawling through dirt in a SWAT obstacle course and entering a burning building with firefighters. These could be action movie stunts by Arnold Schwarzenegger, the Hollywood star turned California governor. But they were all done by another governor earning a reputation for public displays of physical prowess — Eric Greitens of Missouri. The 43-year-old Greitens — the nation's second-youngest state executive — revels in the attention, posting videos of his action adventures on Facebook and even using them to help stay fit while keeping a demanding schedule.