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Limiting crypto helped the Texas power grid weather a heat wave

As a blistering heat wave smothered Texas this week and taxed the power grid with record-high demand, bitcoin mining operators in the state shut down their electricity-guzzling machines. Complying with requests from the Electric Reliability Council of Texas — the grid operator that asked businesses and residents to voluntarily conserve electricity during the heat wave — nearly all industrial-scale mining in the state powered down, according to the Texas Blockchain Council, an industry association.

Read MoreLimiting crypto helped the Texas power grid weather a heat wave

Five takeaways from the House committee report on the Uvalde shooting

A report released Sunday by a special committee of the Texas House provides the most thorough account yet of the May 24 Uvalde school shooting and the failures of law enforcement and other state and local officials. In 77 pages, it described how the shooter prepared and armed himself, how the school district fell short on campus safety preparations and how law enforcement moved too slowly to end a massacre that left 19 students and two teachers dead.

Read MoreFive takeaways from the House committee report on the Uvalde shooting