Tonight’s title match: In the red corner, numbering 948,954, representing over half of all 501(c)(3) organizations, are public charities. And in the blue corner, numbering 108,594, having increased 54% since 1998, are the 501(c)(3)s known as private foundations. Both competitors bring a long and varied history into the ring. Though greatly outnumbered by public charities, [...]