Judy Woodruff:
The Camp wildfire roared through Paradise, California, last November, leaving 85 people known dead and the town a wasteland.
As demolition crews continue to clear tons of toxic ash and debris, there are concerns about the environment, public health and the safety of the water.
Special correspondent Cat Wise reports on how survivors are trying to bring some sense of order back to their lives.
It's part of our weekly series Leading Edge on science and technology.
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