RPT-INSIGHT-Sanctions-scarred banks may hold back Iran's economic relief
May 14, 2015 at 07:00 AM EDT
WASHINGTON/NEW YORK, May 14 (Reuters) - Major banks wary of heavy U.S. penalties will be reluctant to restore ties with Iran even if sanctions are lifted in a possible nuclear deal, bank executives and advisers say, likely denting Iran's ambition to attract foreign investment to revive its crippled economy.