Negotiations are being carried out between the suspect and authorities through a 60-foot plastic ventilation pipe that leads from the bunker, authorities said.

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At a 4-foot-long skylight, a 7-foot corrugated-plastic lighting sculpture made of small plates hangs from the 20-foot ceiling.

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Inside is a deep, two-foot long plastic bin full of blue tubing and packets of asthma medicines.

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Lafreniere said that the foot was fake, made of plastic or rubber, and that it was someone's idea of a bad joke.

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The installation, currently housed at the New York Hall of Science in Flushing, layers 12 of its component clear plastic sheets to create a roughly one-foot deep display that plays a simple pre-drawn animation.

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The Pacific voyage aboard the 60-foot catamaran is intended to highlight the growing amount of plastic waste in the oceans and to spur public debate on finding ways to turn the waste into a resource.

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They also found two kitchen timer units, two toggle switches attached to the timers in a plastic lunch-type box and a vehicle battery in the front passenger foot well.

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Dubbed simply "The Cloud, " the structure would consist of two 400-foot tall mesh towers that are linked by a series of interconnected plastic bubbles, which would themselves house an observation deck inside and be used to display everything from Olympic scores and highlights to a "barometer of the city's interests and moods" outside (that latter bit comes courtesy of the group's partnership with Google).

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