The University of Massachusetts is marking the opening of a new center for terrorism and security studies in Lowell.

At a ceremony on the Lowell campus today, Boston Police Commissioner Ed Davis, who stepped down Monday after seven years at the helm, will discuss lessons the city learned from the Boston Marathon bombings.

The center will focus its research on the United States' approach to counterterrorism and public policies. 

University officials will also release today a national poll on public opinion on safety and homeland security.

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