WASHINGTON — UBS has been accused of withholding tens of thousands of records about former subsidiary Credit Suisse’s shocking Nazi ties — including involving the forced transfer of assets owned by murdered Jews. Around 23,000 documents are still being “redacted or withheld” from a lawyer conducting an independent investigation into the Nazi-linked accounts at the now-defunct Credit Suisse, according to new testimony submitted to Congress on Monday. The ombudsman, Neil Barofsky, said in supplemental written testimony to the Senate Judiciary Committee that he also has yet to see another 1 million pages under review by UBS lawyers for potentially privileged...