Congress defunding NPR is throwing Brer Rabbit into the briar patch. NPR only gets 2% of its money from the U.S. Taxpyer. It's a slap on the wrist. However, revocation of NPR's tax-exempt status as a 501(c)(3) non-profit means donors cannot claim tax credit for "donating" money to sponor shows.
Without its tax-exempt status, NPR would have to compete with other broadcasting companies on an equal footing. That's the real thermo-nuclear threat posed by O'Keefe's undercover videos so far.