Brazil's top prosecutor challenges President Temer's Christmas pardons

(Reuters) - Brazil's top prosecutor has launched a legal challenge against pardons granted by President Michel Temer just before Christmas, saying they are unconstitutional and threaten a probe into the country's largest-ever corruption scandal.The pardons traditionally granted by the Brazilian president around Christmas are applied to criminals meeting certain conditions, including having already served part of their sentence.Prosecutor General Raquel Dodge said in a statement late on Wednesday