The Death Penalty
There's a billboard along EDSA that questions the logic of executing criminals in order to prove that killing is wrong.

Well, that's not necessarily the reason why these folks are being executed.

The possible justifications that come to mind include:
1) they are a danger to society, and cannot be rehabilitated - closest thing to "self-defense";
2) it is a form of justice - the punishment fits the crime;
3) it is a deterrent - the consequence for a heinous crime.

None of these stem from the "to prove killing is wrong" argument. We know that killing is wrong (in general) though sometimes necessary (IMHO). The billboard argument annoys me because of the gross over-simplification of the arguments both for and against capital punishment.