A federal judge in Virginia agreed Monday to grant immunity to five potential witnesses in Paul Manafort’s upcoming trial — but, in a blow to Special Counsel Robert Mueller, said their identities would be made public. Mueller’s team wanted the identities of their witnesses to remain confidential, saying in a filing last week that they haven’t been criminally charged and to avoid “undue harassment.” But Judge T.S. Ellis, a Ronald Reagan appointee, said they would be identified. He also ordered Mueller’s office to provide a list of about 30 witnesses to Manafort’s lawyers.