In other words, it has not been clear that the immune system can recognize and attack lung tumors.

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Not before, so it can be repaired if the attack is postponed.

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In cyberspace, where attacks can launch in milliseconds, a nation might not have enough time to detect an attack and mount a defense.

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Ambulance service managers say such behaviour will not be tolerated and have pledged to do all they can to prosecute people who attack their crews.

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Antitrust law is widely accepted to be a tool for protecting consumers against the most damaging practice of monopolists, which is to artificially restrict supply so they can drive up prices and profits, and not a legal weapon for small companies to attack their larger competitors.

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If FailSoft is not set up, then nobody can talk if all control channels are lost through an attack against the system.

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The notion that somehow that Senator Clinton is going to be immune from attack or that there's not a whole dump truck that they can back up in a match-up between her and John McCain, I think is just not true.

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But just because an electricity company's customers can pay their bills online, it does not necessarily follow that the company's critical control systems are vulnerable to attack.

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