Sorry if this has been answered (I didn't read through all 41 pages but I did check the Wiki on the other thread), but my wife and I both have NEXUS set to expire early next year (March and April of 2020). We don't travel to Canada much anymore since I no longer have the job I had when I applied, and we won't be able to use it on our next trip anyway since her mother will be with us. Are there any drawbacks to just letting it expire? Will we just revert back to our pre-NEXUS status or will we get flagged for extra scrutiny at border crossings and airport security?