Special counsel Jack Smith is asking the judge presiding over former President Donald Trump‘s criminal classified documents case to reconsider a ruling that would publicly disclose witness identities and their testimony, citing online threats that are now under federal investigation.

Smith asked U.S. District Judge Aileen Cannon on Thursday to block Trump from attaching discovery evidence about the witnesses on the public court docket in the case, which concerns Trump’s alleged improper retention of classified records at his Florida resort home, Mar-a-Lago.