By CHAD GARLAND | STARS AND STRIPES Published: April 29, 2021 A security forces airman was guarding an air base in Pennsylvania when his idol, former Navy SEAL and podcaster John Gretton “Jocko” Willink rolled up to the gate and asked to enter. Airman 1st Class William Guilfoyle, who prepared for basic training and pushed through technical school with the help of Willink’s podcasts, was thrilled to see the retired naval officer this month at Biddle Air National Guard Base in Horsham, Pa. “I was just blown away to be able to meet him and shake his hand,” said Guilfoyle, a native of Susquehanna, Pa.