Mr. Abbott said that while the sacrifice "certainly puts stress on the police force, " officers wanted to work with the district to secure its 8, 000 students.

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That puts stress on the dying and their loved ones.

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This puts oxidative stress on the brain and risks undoing all the good work those antioxidants have been up to.

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That puts some stress on the system, as well as on pocketbooks.

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Mr Obama, by contrast, puts greater stress on Iran taking the final, essentially political, step to acquiring a device by bringing together all its technological components.

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The high-stress work often puts these airmen on the razor's edge between saving a life and losing their own.

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