New plan: every time I run across a Thin Blue Line flag I will take the color scheme to be affirming US-Estonian solidarity.

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You could tell me that "klaatu barada nikto" was Estonian and I'd have no grounds to disagree.

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Basic models of flocking behavior are controlled by three simple rules: 1) separation: avoid crowding neighbours (short range repulsion); 2) alignment: steer towards average heading of neighbors; 3) cohesion: steer towards average position of neighbors (long range attraction). With these three simple rules, the flock moves in an extremely realistic way.