Cans Are Great ... Except for the BPA

Patrick Emerson read John Foyston's piece on canned beer this morning and gave the idea his economic seal of approval ... except for one thing:

But it is not all good news and for this reason I think brewers should be cautious. Currently, as far as I can figure out, most or all aluminum beverage cans are lined using BPA.

He then gives a backgrounder on the substance and refers to conflicting studies before offering this conclusion:

So, until there is a source of BPA free cans for craft brewers, I think it would pay for them to be cautious about moving wholeheartedly into cans.

Well, is there? Should brewers be cautious?