Should Obama Admin. not do then this sale? No, I am not saying that. All I am saying is, Admin should not make an empty offer just to nudge China in it's Iran policy. Obama Administration must be ready to follow through this weapon sale despite all of it's consequences. In light of Chinese pressure to back from this offer without getting anything in return (say China's turn about Iran policy as an example and possible quid pro) will be extremely damaging to Obama Administration.
In the first year Obama Administration is reasonable in it's Foreign Policy and there are not too many failures apart from apparently non-working Iran policy. So Obama Administration should not invite any avoidable damage with China if it is not ready to follow through what it is saying about Taiwan. My feeling is, it is hard to have confidence about Obama Administration that it will continue to show such 'guts and nerves' in following through the Taiwan offer. One has to wait and see how this show unfolds as in all probability this is just a first 'act'.