In mid-April,Kenya signed a deal, which will allow the United States to install radiation sensors and other equipment at its busy Mombasa seaport to detect any nuclear or radiological materials that could be smuggled in to be used in a weapon.

VOA: standard.2009.05.01

Cooperate with law enforcement and other agencies to detect and alleviate attacks.

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Dogs are now being taught to detect breast cancer from a breath tube, after an animal Dr Guest was training to detect other cancers started to warn her.

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He explained that ground-based radars are able to track objects of about 10cm (3.9 inches) and sometimes smaller, depending on altitude above the earth, while other sensors can detect particles down to about 5mm (0.2 inches) in low earth orbit.

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