Iran - Speak up now or shut up later

Liberals in the US have followed the same pattern for over 5 years now: wait for Bush to do something then criticize it. It is amazing how they have gotten away with this tactic. I would challenge the liberals to speak out now on Iran before decisions are made or before something happens due to Iran having nuclear capability. Why don't the liberals come up with a solution and offer it? I say speak up now or shut up later.