Why must it be all or nothing? Why can't airport security be like in other countries? (at least the parts not contaminated by TSA) By that I am referring to the parts that include common sense, professionalism, polite interaction, and real security measures, not those put on for show to reassure an impressionable public.

No one country has managed to work out everything to be the 'right' way; again, nothing is that black and white. But when there are more 'wrongs' than 'rights', it is time to reevaluate.