The “BLM” in the note refers to the Black Lives Matter movement, while the mention of “Pantifa” likely speaks to the derogatory term for Antifa, an anti-fascist movement whose followers at times engage in violent clashes with right-wing zealots.
The warning is the most telling yet that possibly a sizable intelligence failure occurred before the pandemonium at the Capitol. The official who revealed the document, under the terms of anonymity because the investigation is ongoing, added the report was raw intelligence and that at the time it was written the FBI did not know the identities of those making the online statements.
Dozens of people have faced federal charges since the riots last week. On Monday, it was announced that two Capitol police officers were suspended and one security official was arrested as a result of their participation in the deadly insurrection. Multiple Capitol officers, as many as 15, are still under investigation for their failed response or involvement with the siege of the Capitol.