Some power/control grabs are much more subtle than others.
"...NASA and DOD would announce it..."
Did the US military announce the Tuskegee experiment,
en.wikipedia.org
or operation "Sea Spray" on San Francisco,
en.m.wikipedia.org
or "The US has a history of testing biological weapons on the public..."
The Pentagon has been instructed by the House of Representatives to investigate whether ticks were infected with Lyme disease by the US military.
theconversation.com
As for 'needing' funding,
"MSU scholars find $21 trillion in unauthorized government spending"
From late 2017
Conspiracy is a scientific fact.
Do you pride yourself on being an honest person? Even individuals who have a proven track record of honest behavior are no match for the potentially negative influences present in a group dynamic, especially when money is at stake, according to a new study.
www.sciencedaily.com
Proportionally groups lie with greater propensity than individuals do for wealth, control and power.
I would be suspicious about any prospective alien's agenda,
but people in power have an unending history of lies and deceit.
And the general population doesn't rationally hold anyone to account.