Opinion of lifetime Secret Service protection for former Presidents

[Indy Texas]

Limited protection for VPs, but I think POTUSs need lifetime protection. We cannot allow an easy target for terrorists.

Is there any precedent anywhere for long-since retired politicians being assassination targets? And even if there some, surely it's much less than present-day politicians and recently retired ones.

There was an assassination attempt on George H. W. Bush when he was visiting Kuwait a couple of years after leaving office.