I FDE (on macs, FileVault 2 is by far the easiest, even though Apple is one of the more likely backdoor providers), but I also don't keep anything sensitive on

I FDE (on macs, FileVault 2 is by far the easiest, even though Apple is one of the more likely backdoor providers), but I also don't keep anything sensitive on it. If seized at the airport, it provides a useful bit of information on whether they can break filevault 2. It seems implausible they would even if they could without a "plausible non-cryptographic alternative".