Can someone help me answer this
I signed up (and was approved) for Nexus and GE, I had my interview at the Detroit bridge crossing.

They didn't have a retina scanner there, and he mentioned something that I needed to have a retina scan before using GE. Does that sound right?

When I look at the documentation for using GE, it seems like it's just a scan of the passport and fingerprints on the machine, no retina scan.

Any ideas?