Global shares fall on weak results; dollar ends worst month in four years

By Sam Forgione NEW YORK (Reuters) - Stock markets worldwide posted a second straight session of losses on Thursday after more weak earnings reports, with all three major U.S. indexes plunging more than 1 percent. The dollar fell on Thursday, to close out April as the greenback's worst month in four years, as measured against a basket of six major currencies. Celgene led a fall in U.S. biotech stocks, while shares of Harman International Industries fell 7 percent after the maker of audio sy