A. This warranty covers any repairs needed to return battery capacity to a level of nine remaining bars on the vehicle's battery capacity level gauge.

ENGADGET: Nissan upgrades US Leaf warranties, will 'restore' batteries that lose too much charge

This has given rise to an efficient education system whose graduates are among the most competent administrators imaginable, endowed with an extraordinary capacity to manage one of the world's best performing economies while remaining close to the nation they rule.

ECONOMIST: Letters