Why are AR-15′s ‘Personal Defense’ Weapons for the DHS but ‘Assault Rifles’ for Citizens?

“We are fast approaching the stage of ultimate inversion: the stage where government is free to do as it pleases, while the citizens may act only by permission.” – Ayn Rand

AP

Why are fully-automatic AR-15s with 30-round magazines and hollow-point bullets called ‘personal defense’ weapons when the Department of Homeland Security purchases them, but semi-auto AR-15s are assault rifles in the hands of citizens?

The Department of Homeland Security filed a purchase bid this past June titled “Personal Defense Weapons Solicitation”. It is combined bid for 5.56x45mm NATO ammunition and “select-fire firearm suitable for personal defense.” [link to www.pakalertpress.com]