The Houston Independent School District is confirming that its administrative offices were raided on Thursday by the FBI. At least a dozen FBI agents carried boxes and a trunk out of the HISD administrative building on Thursday morning. About half-a-dozen unmarked FBI vehicles were parked nearby. FBI agents also turned up at the home of Brian Busby, HISD's chief operating officer. The district says it's cooperating with the probe, but there's been no indication of what the agents were searching for.
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