Reason Morning Links: Obama Wants Tax on High-End Health Plans, Holocaust Museum Shooter Dies, Cell Phones Prevent Alzheimer's?

• Border enforcement officials say they discovered Christmas Day bomber's extremist links while he was in the air.
• Obama urges Dems to back "Cadillac tax" on high-end health plans.
• Mobile phones could offer protection from Alzheimer's.
• Holocaust Museum shooter dies in prison.
• L.A. the latest big city to see 40-year low in violent crime.