Links for Later 6-11-15

1. Electrical stimulation of the vagus nerve may help migraine, tinnitus, epilepsy, stroke...
2. The role of the default mode network in creativity. Effect of training on the DMN.
3. Did Nancy Pelosi "misread" the Democratic Caucus on trade and the TPP?
4. Brad DeLong misjudged Niall Ferguson, Paul Krugman didn't.
5. On the trail of the Last Universal Cellular Ancestor, before the kingdoms of life were separate.
6. Proportional map of the world's languages.
7. The stoners who became the US government's source for guns & ammo.