The question is do you use either of those two cards for their intended purpose of crossing the land border of the United States. The land border ports do have the proper equipment to read them. It is a very quick way to lose the privilege of participating in the NEXUS program to have tampered with the card in that way. Passport card not so much because it is harder to not issue a Passport card but the NEXUS program is a very different animal and is much easier to lose the privilege of using the program as this is a trusted traveler program and you can't be very trustworthy if you are tampering with the card.

This hammer idea is another example of the kind of bad advice I was referring to in another thread. There are other alternatives that achieve the same end and have the added bonus of actually being legal and don't include tampering with the card.

You want the TSA to abide by the laws, rules, and regulations of the United States. However, when those laws, rules and regulations are in conflict with what we want to do becomes pretty easy to justify ignoring those laws, rules and regulations. Sounds kind of like the how the current TSA is characterized doesn't it.
Pot meet Kettle.

FB