By Jonathan Stempel NEW YORK (Reuters) – The late financier Jeffrey Epstein invoked his constitutional right against incriminating himself about 600 times in testimony for a lawsuit brought by Virginia Giuffre, who accused him of sexual abuse. Epstein’s refusal to answer questions in Giuffre’s lawsuit against his longtime associate Ghislaine Maxwell was disclosed in a filing on Friday in Manhattan federal court, as part of a trove of documents being unsealed this month from the civil defamation case, which settled in 2017. The Fifth Amendment of the U.S. Constitution gives people the right not…