Those federal bureaucrats who can’t be fired want to be able to defend themselves from angry taxpayers.  Or something.  AWR Hawkins reports for Breitbart:

A May 7th solicitation by the U.S. Department of Agriculture seeks "the commercial acquisition of submachine guns [in] .40 Cal. S&W."

According to the solicitation, the Dept. of Agriculture wants the guns to have an "ambidextrous safety, semiautomatic or 2 round [bursts] trigger group, Tritium night sights front and rear, rails for attachment of flashlight (front under fore group) and scope (top rear), stock collapsible or folding," and a "30 rd. capacity" magazine.

They also want the submachine guns to have a "sling," be "lightweight," and have an "oversized trigger guard for gloved operation." 

But of course those feds have our best interests at heart, so there's nothing to worry about. And those efforts to disarm us are for our own benefit.