Just remember if you live in a US city that borders Canada you should apply for Nexus for only $50 & it includes GE as a bonus, instead of paying $100 for GE alone (makes no sense, but the government runs the programs).

On the AMEX Platinum reimbursement - they will reimburse any GE or Nexus application charge on your card (up to $200) AND the "other person(s)" do not have to be authorized users (this has been reported by me and others from personal experience).