By Aruna Viswanatha WASHINGTON (Reuters) – Wall Street executives may have personally escaped the wrath of the U.S. Department of Justice but executives at companies accused of foreign bribery schemes may not be so lucky. Prosecutors say they are clearly shifting away from only big corporate settlements in such cases and are beginning to target more individuals. The numbers are not eye-popping. But officials say the results are encouraging and these cases may provide road maps for other financial fraud prosecutions. Certainly… …