Venezuela on edge after anti-Maduro referendum blocked

By Andrew Cawthorne CARACAS (Reuters) - Outraged opposition leaders vowed peaceful protests on Friday after a failed drive to remove socialist leader President Nicolas Maduro who warned his foes not to "go crazy." The election board's suspension of the recall referendum leaves Hugo Chavez's successor on track to complete his term, which ends in early 2019, despite the OPEC nation's crushing economic crisis and his own personal unpopularity. It also deals a massive blow to the opposition coalitio