By Herbert Lash, Amanda Cooper and Tommy Wilkes NEW YORK/LONDON (Reuters) – U.S. and European stocks tumbled on Friday, the dollar scaled a 22-year high and bonds sold off again as fears grew that a central bank prescription of raising interest rates to tame inflation will drag major economies into recession. The Dow Industrials was poised to confirm a bear market as a deepening downturn in business activity across the euro zone, and U.S. business activity contracting for a third straight month in September, left Wall Street wallowing in a sea of red. British assets weakened further after the …