The threats come amid public scrutiny over whether more could have been done ahead of the July 4 storm, which has claimed at least 132 lives.

The Homeland Security chief denied that a memo she issued in June requiring her to approve FEMA expenditures over $100,000 caused the agency to move more slowly.

Hours before a massive wall of floodwater barreled down a river in the heart of Texas Hill Country before sunrise on Friday, forecasters with the National Weather Service warned people that dangerous