When university administrators across the nation worry about the potential fallout from campus protests, they may have Siemens Hall in mind.

The building at California State Polytechnic University, Humboldt, includes the campus president’s office and has been occupied for a week by pro-Palestinian protesters who barricaded themselves inside and fought off an early attempt by the police to remove them. Protesters have since tagged walls and renamed it “Intifada Hall” by ripping off most…