Andrew Weissmann, the lead prosecutor for Special Counsel Robert Mueller, has a history of questionable conduct. But the full extent of Weissmann’s alleged prosecutorial misconduct is unclear because some of the most serious charges were hidden behind redactions and secreted in sealed court filings. Two months ago I sued to have these records released, but late Friday federal Judge Sim Lake’s case manager confirmed that several of the sought-after documents are missing from the court record. In early November, Houston attorney Kevin Fulton of the Fulton Law Group filed a motion in a Texas federal court to unseal and unredact...