| | | | | Good morning. It’s Tuesday, Dec. 16, and 100 scientists told The Post which books inspired them as kids. Take a look, they might inspire you, too. Now let’s get to the news.  | Investigators released new footage in the hunt for the Brown University shooter. | - What it shows: A person in dark clothes and a mask near the scene of a Saturday shooting that left two students dead. Police earlier detained, then released, a different person.
- A community on edge: Concerns are growing that investigators wasted time following the wrong lead. The FBI is offering a $50,000 reward for information leading to an arrest.
| |  | The Bondi Beach gunmen were inspired by the Islamic State, officials said. | | |  | Rob Reiner’s son was arrested in connection with his parents’ deaths, police said. | | | From left, Michele Singer Reiner and Rob Reiner, with their children, Jake, Romy and Nick, in 2014. (Evan Agostini/Invision/AP) | |  |  | Senior Pentagon officials are preparing major power shifts within the U.S. military. | - Under the plan: Several of the military’s major headquarters would be downgraded. If adopted, it would mark a consolidation sought by Defense Secretary Pete Hegseth.
- More military news: A JetBlue pilot changed altitude to avoid colliding with an Air Force plane off Venezuela’s coast Friday, he told air traffic controllers. Listen to the audio here.
| |  | Trump has signed more executive orders in 2025 than in his entire first term. | | | Cumulative executive orders signed by president and term. Data as of Dec. 15. Source: Federal Register. (Nick Mourtoupalas/The Washington Post) | |  | A scientist who studies protein told us what he eats in a day. | - Protein advice can be confusing: Your needs depend on your activity level, weight, age and other factors. When you eat it and the foods that you get it from are also important.
- One expert’s approach: Don’t overdo it. He told us he starts the day with Greek yogurt and increasingly has a plant-focused meal for dinner. Find all of his useful advice here.
| |  | We tested five AI bots with an image challenge. | | | Starting with a real photo of Dwayne “The Rock” Johnson, we asked the bots to “give this man bangs.” (The Washington Post) | - How? By getting an artist, a Pulitzer-winning photographer and a photo-retouching master to judge AI’s attempts to delete an ex from a photo, design art and convey real emotions.
- There was a clear winner: Google’s Gemini came out on top in every test. See the full experiment and find out how our judges ranked each bot here.
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Jamie Ross and 
