In that event, the burden becomes so high as to become insurmountable for all practical purposes.

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Even if the Kremlin dropped its historic opposition to limiting these arms in a new accord, verification would be impossible as a practical matter and the price high in terms of further reducing the "nuclear umbrella" U.S. tactical nukes provide our allies.

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So far, the cost of synthesizing and sequencing such very long strands of data-rich DNA as from the book remains too high to make the technique a practical commercial data-storage medium for the foreseeable future.

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Assess your money and see if you can make room for a single nice, practical-but-luxurious purchase such as a TV or high-quality bed.

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In practical terms Afghanistan will be very high on the agenda, as will Libya, followed by the Middle East peace process or lack of it.

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Another laser that came close to being practical enough to use was the Tactical High Energy Laser, also known as the Nautilus laser (pictured above), which was designed to shoot down incoming artillery rounds.

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From practical necessities such as an alarm clock or a new set of linens to fashionable indulgences such as high-end headphones, we firmly believe there is no reason for anyone--much less a college student--to fork over the big bucks to live the good life in the dorm.

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