Sigma Nu has revoked the charter of its chapter at the University of Kansas:
http://www.kansan.com/stories/2005/sep/09/Sigma_nu/
Excerpt:
. . .Citing violations of the fraternity's laws, policies and principles, the Sigma Nu High Council has ended the local chapter's almost-121 year history at the University.
The national organization said that the chapter would be reestablished in "the near future."
"Sigma Nu Fraternity cannot tolerate these activities that defy the Fraternity's most basic values and principles," the fraternity said. . . .