US STOCKS-Wall St sinks as Greek fears rise; more losses eyed

* NY manufacturing turns negative, first time since Nov * Moody's may cut French banks' ratings on Greek exposure * VIX jumps to highest level since March 18 * Dow off 1.5 pct, S&P off 1.7 pct, Nasdaq off 1.8 pct * For up-to-the-minute market news see [STXNEWS/US] (Updates to close, changes byline)