GLOBAL MARKETS-Wall St steps back, euro gains on Weidmann comments

* Wall St slightly lower as it consolidates after recent highs * Euro recovers from 2-week low, currency war talk continues * Brent crude trims declines, U.S. crude jumps By Leah Schnurr NEW YORK, Feb 11 (Reuters) - The euro rose on Monday, coming back from lows as a European policymaker dismissed talk of intervening to weaken the currency, while U.S. stocks faltered after hitting multi-year highs. Tensions over whether some countries are deliberately trying to weaken their