Hal Burtliburton News Today

>> you mentioned a moment ago, the government is wanting answers from hal burtliburton f capping this leak. what can we expect there? >> reporter: henry waxman asked halliburton for all of the documents relating what it is doing in the cementing operation. the cementing operation essentially encloses the casing and prevents leaks, prevents -- it fastens the casing on to the hole at the bottom of the ocean to prevent gas and fuel from spewing upward and causing an explosion like this. halliburton...