Bruised Toshiba 'not ready' to unveil earnings, probes nuclear unit

By Makiko Yamazaki TOKYO (Reuters) - Japan's Toshiba Corp shocked investors on Tuesday with a last-minute delay to a long-awaited financial update, saying it needed more time to probe its Westinghouse nuclear business. Toshiba had been expected to release third-quarter earnings on Tuesday, including the exact size of a writedown for its U.S. nuclear business that is expected to top $6 billion due to hefty cost overruns at two projects, as well as planned remedies. Toshiba said it was seeking app