Terraform: how do you inspect sensitive data?
When your configuration or a provider marks an attribute as sensitive, Terraform will always hide that value in any output that's intended for human consumption.
The real values are available in machine-readable output though. This is primarily with the aim of integrating with external software, but if you need to then you can also inspect the machine-readable output directly yourself.
You can get a machine-readable (JSON) rendering of a plan like this:
terraform plan -out=tfplan
terraform show -json tfplan

If you intend to read it directly in the terminal then it can help to pipe it into jq, if you have that utility installed:
terraform show -json tfplan | jq