Amid all the furious G7 money printing of recent years, Brazil was the first to sound the air raid siren in the “international currency war”  back in 2010 and it continues to cry foul over the past week. With its finance ministry issuing fresh warnings last night over hot-money flows being dropped by western economies on its unsuspecting exporters via currency speculation,  Brazil’s central bank then set off its own defensive anti aircraft battery with a surprisingly deep interest rate cut late Wednesday. Having tried everything from taxes on hot foreign inflows to currency market intervention, they are braced for a long war and there’s little sign of the flood of cheap money from the United States, Europe and Japan ending anytime soon. So, if  you can’t beat them, do you simply join them?