FT’s Maverecon has it and the quotes are pretty clear:

There is little doubt that if the Buy American provisions of the Economic Stimulus Package were to become law, this would amount to an economic declaration of war on the rest of the world. The response of the assembled non-US finance ministers in Davos made this clear.  Retaliation from the EU countries and the rest of the world would follow swiftly.  Because this disastrous US Congressional actions follows so closely on Treasury Secretary Geithner’s declaration that China is manipulating its currency, it is essential that the Obama administration draw a clear line in the sand.  If anything like the Buy American clause inserted by the House survives in the bill president Obama gets on his desk, he must veto it.  The questionable value of the fiscal stimulus is overwhelmed by the unquestionable domestic and global harm caused by the Buy American clause.  If president Obama fails to veto a protectionism-laced bill, it will be clear that we have a wuss in the White House.  If such is the case, God help us all.

H/T Economist.