After touring the area by helicopter, Florida Gov. Charlie Crist said he had seen "some light sheen" three to four miles from shore.

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Because of their light weight, strength and high melting point, ceramics are now incorporated into such military items as helicopter armor and parts in rocket guidance systems.

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At the launch party for Mega, Mr Dotcom made light of the incident, re-enacting the raid on his mansion by New Zealand authorities with a helicopter and actors dressed as armed police.

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