Cyrus Farivar of Ars Technica reports that another federal judge has found the warrant used by the FBI to deploy its Tor-busting malware is invalid. This finding isn‘t unique. Multiple judges in various jurisdictions have found the warrant invalid due to Rule 41, which limits execution of warrants to the jurisdiction where they were issued. But only in a few of the dozens of cases stemming from the FBI‘s child porn investigation has a judge ruled to suppress the evidence obtained by the FBI‘s NIT.