Joseph Lieberman actually said...

When Chairman Lieberman and I weighed in on behalf of small businesses, OSHA withdrew that proposal.

not whether to regulate but how to regulate

Codification is such an important thing. It will signal to the agencies, again, culturally that this is important.

If, however, you are moved by the aggregates, then I would urge you to look at the document that Senator Whitehouse referred to earlier.