However, the way that OFAC de-listed Tornado Cash, and the subsequent notices and motions its lawyers filed with the court in March, left apparent wiggle room for the agency to put the mixing service back on its no-fly list in the future, a federal judge said. The Treasury attorneys argued that, because OFAC had revoked sanctions against Tornado Cash before the district court’s final judgment (but after the appeals court’s decisive ruling), the issue was moot. But, to the six plaintiffs in Van Loon vs. Treasury — all users of Tornado Cash — the issue was not, in fact, moot. In an April 21 filing, their lawyers blasted OFAC’s response to the Fifth Circuit’s ruling, calling it “a study in chaos” and accusing them of “wav[ing] the mootness flag” in a last-ditch effort to “evade an adverse judgment.”
