Their bodies are unable to self-regulate their core body temperature and we must be vigilant they are not too cold or too hot.
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Al Qaeda remains dangerous, and we must be vigilant against attacks.
The methods and means used by unfriendly competitors or hostile nation states and the nature of modern day information processing technology dictate that we must be vigilant in protecting critical information assets and our national research infrastructure.
From the conventional to the unconventional, from nations seeking weapons of mass destruction to the cell of terrorists planning the next attack, from the old danger of piracy to the new threat of cyber, we must be vigilant.
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We must be vigilant and consistent.
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We must all be vigilant in demanding that our legal system is fair and just.
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We must be eternally vigilant in order to ensure that our system of corporate governance is open and transparent and is not abused.
To overcome extremism, we must also be vigilant in upholding the values our troops defend, because there is no force in the world more powerful than the example of America.
To overcome extremism, we must also be vigilant in upholding the values our troops defend because there is no force in the world more powerful than the example of America.
They understand that just as we invest in maintaining our critical human-built infrastructure, whether roads, bridges, power plants, or orbiting satellites, so too must we be vigilant in safeguarding natural infrastructure to avoid crippling costs down the road.
"We must continue with our strong and determined engagement in Sudan and we have to be especially vigilant at this time, " she declared.
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