If it were a plague, the government would rush to quarantine the infected, as occurred during Europe's Black Death in the 14th century. An immigration debate at Seattle University School of Law is a plague of a different sort, but deadly in a different way. The victim here is the right to free speech. The Washington Free Beacon reports that Annette Clark, the dean of Seattle University's Law School, has revoked the school's sponsorship of a Federalist Society event. The reason? The proposed debate on immigration, hosted by the school's Access to Justice Institute, might be "harmful" to minority students...