The US Court of Appeals has ruled that the University of Wisconsin cannot discriminate against religious activities:
A key part of the ruling involved the university’s decision to fund broad categories of activities in the first place. The majority decision indicated that the university could have blocked student fees from going to the activities in question if it had blocked entire categories of support — no matter whether conducted by secular or religious groups. Once a university allows any category of student activity to receive support, however, the court ruled that it can’t bar support for that activity just because it may involve worship.
Sounds right.