U.S. stocks set for a comeback, or another blow?

By Rodrigo Campos NEW YORK (Reuters) - The deep selling that has been synonymous with Wall Street in the new year became bad enough on Wednesday to start drawing in buyers, but it is still too soon to tell whether they will look brilliant or battered in the weeks ahead. The steep declines on Wednesday morning sent mixed signals regarding a market bottom. The S&P 500 could fall another 8 percent before earning a "bear market" title and some market investors still want to see more blood before