The lesson from this analysis is that constant vigilance is the only answer to avoiding ugly surprises.

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"It takes constant vigilance and persistence to show nurses the data and hold them accountable, " she says.

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But we hasten to warn taxpayers that the new rules do not eliminate the need for constant vigilance in tax planning.

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It requires constant vigilance against scam clinics, crooked providers, rogue labs, pill mills, vaporware vendors, and a scuzfest of health care bottom-feeders.

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In this new world of work, lifelong learning and continual education is crucial, as is constant vigilance about changes in the marketplace.

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Thus, whereas other animal species must resort to constant vigilance to reduce the risks of infidelity, humans (or at least those who have a faith) have an extra tool in the box: religion.

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Constant vigilance can slow the tide of transgression.

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Before, students had to make one of two choices: to practice constant vigilance and maintenance of their public profiles online or risk exposing their sharing, web-surfing habits and communication with friends to their professors, employers and parents.

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Continuing this progress demands constant work, nonstop vigilance and American leadership.

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