I fixed it for you.
Second, such a database can aid law enforcement in exonerating people, as well as identifying victims of crimes.
It can aid the government in doing other things in the future when Hillary is in charge too.
am not seeing any well-reasoned argument against the use of a DNA database
The forth amendment.
I'm not against databases, it is how the samples are collected and from whom. LET THEM GET A WARRANT IF THEY WANT TO SEARCH.
Nor do I see a Fourth Amendment problem with building a DNA database (I question whether the Fourth Amendment even applies to this situation), but even if it was a problem, the solution is to allow people to opt out. I certainly don't see a DNA database as any infringement on our liberty, as opposed to something that can actually enhance our liberty.