The Benchmade Infidel is an intriguing knife. It has a D2 blade but it is thin, albeit double edged. It's usefulness as a defensive knife is rather lacking given it's apparent effectiveness for stabbing/jabbing rather than slashing. Is there any practical use in your opinion, aside from being the flashiest looking letter opener? I personally favor the Tanto given the slashing and penetrating superiority. Wanna kill these ads? We can help!