(NEWSER) - Students at Notre Dame upset that President Obama will deliver today's commencement address began an all-night prayer vigil Saturday night, reports AP. Earlier, campus police arrested 19 anti-abortion protesters—none of them students—and charged them with trespassing, notes CNN. The invitation to pro-choice Obama has raised a ruckus at the Catholic school, and some of the more extreme members of the anti-abortion camp plan to make their presence felt at the college. More»