But the news originated in Washington DC, as they perceived 2PM.
No! It's easy to get this confused: the news originated in DC at 1:45pm; with instructions to journalists not to release the news until 2:00pm by the National Atomic Clock.
It may have been legit (!). The rules* say "2pm by the National Atomic Clock", which is in Colorado. The distance from CO to Chicago is about 1019 miles, and to DC is 1681 miles. So Chicago can use the news 3.5ms earlier than DC.
* As gleaned from a handful of secondary articles on the story.
Here's a clue: [rant deleted]: you eat too much and never exercise.
To quote the article:
Mice with the obese twin's bacteria became heavier and put on more fat than mice given bacteria from a lean twin - and it was not down to the amount of food being eaten.