From Alternet: http://www.alternet.org/world/151528/why_do_the_police_have_tanks_the_strange_and_dangerous_militarization_of_the_us_police_force/
The federal government has supplied local police departments with military uniforms, weaponry, vehicles, and training.
By Rania Khalek
July 5, 2011
July 5, 2011
Just after midnight on May 16, 2010, a SWAT team threw a flash-bang grenade through the window of a 25-year-old man while his 7-year-old daughter slept on the couch as her grandmother watched television. The grenade landed so close to the child that it burned her blanket. The SWAT team leader then burst into the house and fired a single shot which struck the child in the throat, killing her. The police were there to apprehend a man suspected of murdering a teenage boy days earlier. The man they were after lived in the unit above the girl's family.
The shooting death of Aiyana Mo'Nay Stanley-Jones sounds like it happened in a war zone. But the tragic SWAT team raid took place in Detroit.
Shockingly, paramilitary raids that mirror the tactics of US soldiers in combat are not uncommon in America. According to an investigation carried out by the Huffington Post's Radley Balko, America has seen a disturbing militarization of its civilian law enforcement over the last 30 years, along with a dramatic and unsettling rise in the use of paramilitary police units for routine police work. In fact, the most common use of SWAT teams today is to serve narcotics warrants, usually with forced, unannounced entry into the home.
Some 40,000 of these raids take place every year, and are needlessly subjecting nonviolent drug offenders, bystanders and wrongly targeted civilians to the terror of having their homes invaded while they’re sleeping, usually by teams of heavily armed paramilitary units dressed not as police officers but as soldiers. And as demonstrated by the case of Aiyana Mo'nay Stanley-Jones, these raids have resulted in dozens of needless deaths and injuries.
How did we allow our law enforcement apparatus to descend into militaristic chaos? Traditionally, the role of civilian police has been to maintain the peace and safety of the community while upholding the civil liberties of residents in their respective jurisdiction. In stark contrast, the military soldier is an agent of war, trained to kill the enemy.
Clearly, the mission of the police officer is incompatible with that of a soldier, so why is it that local police departments are looking more and more like paramilitary units in a combat zone? The line between military and civilian law enforcement has been drawn for good reason, but following the drug war and more recently, the war on terror, that line is inconspicuously eroding, a trend that appears to be worsening by the decade.