Why U.S. can't retreat from the world

Tara D. Sonenshine, newsday.com

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Attack in Sri Lanka reminds us that nations are linked and that terror has no home.

Excerpt:

Maybe some nations are not doing enough in terms of sharing intelligence and public diplomacy [JB emphasis] to counter violent extremist narratives online. Often nations are lulled into a false sense of security in the absence of terrorism. Governments must fight terror in a global age in which money, weapons and radical ideas move quickly.

It is easy to hunker down behind walls and fortresses and pretend nothing can affect the United States. But those walls didn’t protect  ... terror victims. ...

Tara D. Sonenshine is a former U.S. undersecretary of state for public diplomacy. She advises students at The George Washington University Elliott School of International Affairs.