In his long-ish post on the death penalty, Noah
Millman tiptoes up to making what is to my mind the strongest
argument against it. One of his commenters does so more succinctly:
"When permanent incapacitation is a viable option, a limited
government, cognizant of the fallibility of mankind, has no place
exacting such an absolute and irreversible sanction as the death
penalty." But I disagree with the argument that capital punishment
is incompatible with recognizing a right to life. We recognize a
right to liberty, which includes a right not to be kidnapped and
held against your will, while still putting people who commit
certain crimes in jail. The rights to life and liberty require, if
they are to exist as more than academic propositions, individuals
to respect others' rights equally and society to enforce that
requirement.