GeoIP cookies are session cookies. However, on some platforms, they can last a long time. They can also stick around if users keep restoring previous browser sessions. People and devices travel, so let's instead set a reasonable expiry time for these cookies.
This has been idle a while, but it's still probably a good idea. Does anyone have thoughts on an appropriate lifetime? My initial thought is we should be targeting something in the 4-12 hour range.