Hecla has received approval from MSHA to remove the loose material from the shaft, said Phillips S. Baker Jr.

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Let me just quickly say, at the current pace, the president will not secure the loose material in the Soviet Union, former Soviet Union, for 13 years.

NPR: Transcript of Presidential Debate

Food inspectors, air-traffic controllers, specialists who track down loose nuclear material wouldn't get their paychecks.

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There was a lot of loose nuclear material that was vulnerable to potential smugglers, to potential infiltration.

WHITEHOUSE: President Obama Makes a Trilateral Announcement with the Presidents of Russia and Kazakhstan | The White House

For instance, Russia has been indispensable to our efforts to enforce strong sanctions on Iran, to secure loose nuclear material from terrorists, and to equip our troops in Afghanistan.

WHITEHOUSE: Weekly Address: New START Treaty ��Fundamental�� to Security | The White House

And as you know, the President has outlined a plan to get all loose nuclear material contained over a four-year period of time, and in April will host 43 nations in a nuclear security summit in order to make sure that those promises are made real.

WHITEHOUSE: Press Briefing

But I am confident that we can actually meet the goal that we set in the first Washington summit, which is in four years to have made extraordinary progress in making sure that loose nuclear material is not vulnerable to smuggling or to potential terrorist plots.

WHITEHOUSE: President Obama Makes a Trilateral Announcement with the Presidents of Russia and Kazakhstan | The White House

Asphalt shingles ( the most common roofing material in the U.S.) can become loose, cracked, be blown off by the wind or be damaged by hail.

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