Many people before me have provided better explanations than i am able to do. So i have collected website address that discuss "operation garden plot" and its implications and past uses in and for the United States of America.

If you think it cant happen here, i got news for you, it already has ... many many times over.

Historical Perspective
Operation Garden Plot
On the afternoon of 29 April 1992, the worst civil unrest since the 1960,s erupted inthe streets of Los Angeles (LA).Forty-four people died, and hundreds were injured before order was restored. Property damage reached the billion dollar mark. It began as a small disturbance in south central LA, but quickly escalated and spread rapidly throughout the city and country. The violence initially overwhelmed law enforcement agencies, resulting in the burning of large areas of the city. The governor of California committed the state police and two thousand National Guard soldiers to assist in restoring law and order on 30, April. Following a Presidential Executive Order on 1 May, JTF-LA was formed. The Executive Order federalized units of the California Army National Guard (CAARNG) and authorized active military forces to assist in the restoration of law and order. JTF-LA formed and deployed within 24 hours. It operated a unique domestic disturbance environment while working with city, county, state, federal agencies, and the CAARNG. JTF-LA was completely successful in meeting the three objectives defined in its mission statement which were--assume command and control of federalized National Guard and AC Marine and Army forces, establish liaison with local law enforcement agencies, and conduct civil disturbance operations to restore order in the greater LA area.

Garden Plot / CONPLAN 2502 (Civil Disturbance Operations)
http://www.globalsecurity.org/military/ops/garden_plot.htm

Operation Garden Plot JTF-LA Joint Task Force Los Angeles
http://www.globalsecurity.org/military/ops/garden_plot.htm

US Department of the Army Civil Disturbance Plan “GARDEN PLOT” 10-September-1968
http://www.governmentattic.org/2docs/DA-CivilDisturbPlanGardenPlot_...

OPERATIONAL LAW HANDBOOK (2004)
http://www.fas.org/irp/doddir/army/law2004.pdf
[do a search for 'garden plot']

CIVIL DISTURBANCE OPERATIONS
http://fas.org/irp/doddir/army/fm3-19-15.pdf
[again, search for 'garden plot']

INTELLIGENCE AND ELECTRONIC WARFARE OPERATIONS
Chapter six discusses Operation Garden Plot
http://www.fas.org/irp/doddir/army/fm34-1/ch6.htm

Civilian Inmate Labor Program
http://www.army.mil/usapa/epubs/pdf/r210_35.pdf

Operation Garden Plot
http://www.uhuh.com/control/garden.htm

Executive Orders
http://www.issuesandalibis.org/campsb.html

There are many more sources of information far too numerous to publish here. Please look into the operations, programs, and standing rules of engagements, that have been put into place to quell the American people when they rise up to take back Their nation in an attempt to re-establish liberty for all nations by insuring its survival here.