Why are you surprised?

How many times do we go through stuff like this before we stop pretending that there is ever going to be a day when we can trust what we're told?

The Pentagon is continuing to withhold documents on Cold War chemical and biological weapons tests that used unsuspecting sailors as "human samplers" after telling Congress it had released all medically relevant information.

...Detailed planning documents and reports for each of the tests are classified because they identify vulnerabilities of military vessels to chemical and biological warfare agents and capabilities for delivering the agents, the Pentagon said in a response to questions from the AP.

In some cases, samples were taken from sailors to measure their exposure to tracers used to simulate chemical and biological agents, the Pentagon's written statement said. Reports on them were not released because they "did not include any plans or data that measured human effects," according to the statement.

...Rep. Mike Thompson, D-Calif., was frustrated by the revelation that the Pentagon is still unwilling to share information about the tests with the exposed sailors.

"It doesn't sit with me at all," said Thompson, one of several lawmakers who pressured the Pentagon into admitting the existence of Project 112 after 30 years of denials. "I was under the impression that these guys had unearthed everything that was out there that was available and they'd done the work they were charged with doing. If what (Spendlove) says is true, they haven't done the work."  article

When you sign that contract with the government for military service, you are the government's property, but civilians are not. The list of secret experiments on unsuspecting populations is not a short one.

....but hey, do what you want....you will anyway.