"They did what they know best, " another Lao aid worker said, on condition of anonymity.

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The maintenance worker who was shot was in stable condition Wednesday afternoon, said Richard Carpenter, chancellor of the Lone Star College System.

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What has changed is that unions can no longer compel a worker to pay dues to them as a condition of employment.

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One wounded person was in serious condition, four were moderately wounded and the rest suffered light wounds, an ambulance service worker said.

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