BRUSSELS (Reuters) - The euro's exchange rate is not a policy target for the European Central Bank but it does pose a "downside risk" to inflation, ECB President Mario Draghi said on Monday. The euro hit a 15-month high against the dollar earlier this month, complicating the ECB's policy-making tasks by weighing on growth and feeding expectations that it may have to take fresh policy action, although some ECB members are against that. ...