More Capital for Banks

http://gregmankiw.blogspot.com/2008/09/more-capital-for-financial-system.html

"First, the government should tell banks to cancel all dividend payments. "

"Second, the government should tell all healthy banks to issue new equity. "

"Banks don't do that on their own because it would signal weakness; if everyone knows the dividend has been canceled because of a government rule, the signaling issue would be removed."

Actually, this makes a lot of sense.  But man, if I am Wells Fargo, why would I want to raise equity?