That's certainly a very valid and salient concern.
The no-fly lists have been a long-standing problem. There have been proposals to create facial recognition-enabled lists with comparable objectives. CBSA did, in fact, pilot one for a while, and decided not to implement it yet, I think. That is something they piloted, and that's deeply problematic.
The response from CBSA has been concerning. For example, one CBC report tried to probe into the racial biases in one of those facial recognition systems. When they asked for more detailed breakdowns of error rates and racial bias rates.... First, through access to information requests, it appeared that CBSA was not aware, at the time of its adoption, that these were real. Later on, they responded that there are national security concerns with providing this type of error data, which is just not.... In other jurisdictions, this is publicly available. It's required to be publicly available by law in other jurisdictions. That's not a good approach.
More recently, there have been developments, in the sense that CBSA announced they will try to implement a biometric study hub within their infrastructure, but we haven't seen much going on yet.