Originally Posted by
SEA1K4EVR
There are only 2 actual uses for your GE card.. they are valid as govt issued photo ID (but they are not proof of citizenship and are not a substitute for a passport except in one instance), and that is.. you can use it when crossing the land border into the US from Canada or Mexico in the Nexus or SENTRI lanes which will save you some time..you don't need any other ID. Otherwise the card is useless.
Don't forget the GE card will get you the fast track lane in New Zealand.
http://www.globalentry.gov/newzealand.html