[AFreeBird]

Keep a database of their fingerprints(That is already done)when they are actually deported and enforce the law against returning for a specific length of time.

I would modify that a bit to include DNA. If found again the the US illegally, their DNA is barred for life from entering. This includes family members (hence the reason for the DNA) even of they're applying for legal entry. That might actually help curtail the problem at the source.

[MaxMax]

I would modify that a bit to include DNA. If found again the the US illegally,
their DNA is barred for life from entering. This includes family members

You're going "much" to far.
Once we go down that road every American
in the USA would be vulnerable to the same DNA laws. Privacy is also part
of that issue.

The Dems would have us all give up freedoms for the Clinton (Socialist) doctrine.

MaxMax.