With Air Force One expected to touch down Wednesday at Worcester Regional Airport, police are expecting traffic to be messy as the president heads to the DCU Center for Worcester Technical High School's graduation. Mr. Obama is the commencement speaker at the graduation, scheduled to start at 4 p.m.

"We are working with Secret Service to formulate plans for the routes the motorcade will take to the DCU Center," Police Chief Gary J. Gemme said. "It is our understanding that Air Force One will land at Worcester Regional Airport but everything is fluid based on the president's schedule."

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