Both sides are expressing concern over North Korean statements on Friday that Pyongyang is continuing to extract plutonium from spent nuclear fuel for material useable in weapons.

VOA: standard.2009.09.06

And what we've done is submit a tool in the end of the riser to start to extract some of that flow and bring it directly to the drill ship so it never enters into the Gulf of Mexico."

VOA: standard.2010.05.17