Five Best Ideas of the Day: October 30, 2018

The Pentagon’s secrecy is hurting national security.

Rep. Adam Smith in Defense One
How teachers can be more inclusive of LGBTQ students.

Jenny Brundin at KQED Mindshift
Here’s how your brain decides what to learn.

Nathan Collins at Stanford University
For African-Americans, student debt makes college more of a risk.

Annie Nova in CNBC
Why soccer fields are sprouting up at Atlanta’s transit stations.

Adina Solomon in CityLab