NASCAR fans have seen an Army car, a Navy car, an Air Force car, even a Marines, Coast Guard and National Guard cars. But when David Reutimann finished fifth earlier this year in the Coca-Cola 600 at Charlotte Motor Speedway, the No. 00 was sporting a military logo who most in America were unfamiliar. The Armed Forces Foundation was the primary sponsor on the Michael Waltrip Racing car, and Reutimann was ecstatic he could bring a little attention to this relatively new charity. "I think the AFF has been under the radar, so to speak, unfortunately, for what they do,...