Five Best Ideas of the Day: July 25

1. Reinventing Justice: Seventeen states are fixing prisons by using data-driven sentencing practices and focusing on keeping the most dangerous prisoners behind bars. The federal government should follow their lead.

By Nancy La Vigne, testifying before the House Judiciary Committee Subcommittee on Crime, Terrorism, Homeland Security and Investigations

2. Social media has permanently altered our control over what we say and do. We need a new definition of “public.”

By Anil Dash in The Message, a curated collection on Medium

3. This might be the world’s last chance to rescue Ukraine.

By the editors of the Washington Post

4. Water as a weapon: the next escalation in modern warfare.

By Sarah Goodyear at Next City

5. Work local: Reimagining offices to work more like neighborhoods.

By Max Chopovsky in Harvard Business Review

The Aspen Institute is an educational and policy studies organization based in Washington, D.C.