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The Boston Globe

Business

With heavy hearts, Kendall Square workers return

Monday looked like a normal back-to-work day in Kendall Square: Office workers and college students crisscrossed the streets, customers queued at cafes and food trucks, and the air was filled with the clamor of construction.

Except for this: a palpable sense of reflection among the computer coders and tech entrepreneurs whose offices were shut down Friday after the Boston Marathon bombers allegedly killed an MIT police officer nearby and triggered a regionwide manhunt.

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