2012 YEAR IN REVIEW
The standout news & pop obsessions gleaned from your search habits
Top tweets of 2012
Obama, Justin Bieber and Green Bay Packers' TJ Lang have garnered the highest number of retweets this year.
- Grand jury focused on key fatal Ferguson 'tussle'
- The science of setting the NFL schedule
The NFL runs dozens of computers for 24 hours a day for 12 weeks to evaluate its millions of possible schedule combinations. Each team's opponents are set at the end of the previous season based on records and the rotation of interdivision matchups. The puzzle is determining which week each game will be played, and which TV slot it will slide into.