How do the actions of the US FED in maintaining open-ended currency swap lines with the ECB and offering below market interest rates to the ECB for the loans of dollars square with this notion of a so-called “currency war”?

I mean, if I were chairman of the Fed, involved in some vast alliance with Wall Street, the New York Times, George Soros etc in a brewing “currency war” with the euro, and I knew the ECB needed dollars to settle transactions conducted in dollars, I would charge the ECB an arm and a leg and its first born children as the vig on the loan, know what I mean?

If the source includes FNMA, and FMAC–uhh.. technically not as their status allows them to remain “off balance sheet”– plus, the entire US mortgage market was, at its peak may $12 trillion, so I sure would like to see the references.