An “opt in” makes no sense on vaccinations. The point of vaccinations are meant to be given to most people, or it won’t work.
And there was legislation. The executive order was pursuant to a vaccination law that the legislature wrote, that gave the right to the executive to determine which vaccinations needed to be given.
Santorum defended the creation of Homeland Security, against the Perry book charge that the department was a mistake.
At the time, it may have looked like a good idea, but I can’t believe anybody is going to defend it now, given that it overlaps existing departments.
You got that one wrong with respect to Gardasil. There is no attempt to bring about herd immunity, because HPV is not eliminated by the vaccination. It's not like smallpox which was eradicated person by person. Gardasil is meant to protect (imperfectly - 50 to 70%) the individual, not the population.
Some vaccinations, yes, particularly for the airborne and easily transmitted viruses. But there are those, like rabies, that are limited to people in related high-risk situations.
HPV vaccinations are unnecessary for those who aren't sexually active, and even for those who are, HPV often clears up on its own and only causes cervical cancer in some.