The arrest of our WGN colleague is a vivid example of how encounters with immigration officers have quickly escalated.

Emotions can run high on both sides.

A federal judge in Chicago has now taken steps to reign-in how protestors, the press and the public are treated by the armed agents now swarming the city and some suburbs.

In recent weeks, a pastor praying in protest was shot in the head with rubber bullets, tear gas launched from a car near a school and demonstrators dramatically thrown to the ground.

The conduct has been concerning enough to a federal judge, that she issued a restraining order Thursday outlining rules of engagement: • Federal agents must issue two warnings before using riot control weapons, including tear gas. • Firing at protesters, the press and clergy who d

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