Oprah may have kept hush about her soirée with the Obamas on a yacht across French Polynesia, but Tom Hanks is not so disciplined. The 60-year-old actor admitted to Stephen Colbert on Friday’s episode of “The Late Show” that he felt “very low on the food chain” while in the presence of his elite travel buddies: former President Barack Obama and First Lady Michelle Obama, Bruce Springsteen and Oprah.