ISIS Beheadings and Saudi Punishments: 'Difference Is Clear'

[on point]

1. An execution is an execution. It is not as if the west used to behead people....

So there are a few problems here. Should executions happen at all (the US has no credibility here), should the bar be so low for such ludicrous crimes as witch craft, heresy, apostasy, apostasy, insulting the rulers or other crimes of the mind?

Are the standards of proof too low in Saudi Arabia?

As to ISIS, well they have legitimate reason to exist. They certainly shouldn't be executing innocent hostages, prisoners of war, or people in the lands they have taken over for crimes committed prior to their rule (basic violation of fairness).