I have NO idea what kind of website this is. Nor will I vouch for the validity. This was taken from a different forum. So now that I have the caveats out of the way. Look what the feds consider a large amount of guns... There is a photo... (U//FOUO) DHS-FBI Suspicious Activity Reporting (SAR) Bulletin: Weapons Discovery | Public Intelligence Possession of large amounts of weapons, ammunition, explosives, accelerants, or explosive precursor chemicals could indicate pre-operational terrorist attack planning or criminal activity.