Now that every single person has rights, accepting them in your country also gives you a responsibility towards them.
My point was that identity controls predated travel controls and were a prerequisite for a "papers please" kind of society. Each state chooses (either directly or by will of its voters) what responsibilities it owes to non-citizens in its territory. Those responsibilities can range from almost nonexistent to very generous, but it is ultimately the choice of the state, and not the visitors to that state.
Maybe this is different matter for some flights (for example, to Israel or the USA), where the airline does additional checks on you, but you fly out to Europe and most other destinations unchecked (despite needing a visa to enter).
i.e. Russians need a visa to enter country X, you don't have one.
I've traveled quite a lot, and I'm always asked if I have authorization to enter the country I'm flying to.
Maybe they do a fast peek at your passport when letting you to board in the very end, but they can only check if some visa is physically there, since it takes them around 5 sec.
http://msnbcmedia.msn.com/i/MSNBC/Sections/NEWS/A_U.S.%20new...
Snowden should have never been charged. Snowden is a hero, one who took his oath to protect and defend the Constitution of the United States against all enemies, foreign and domestic, with all seriousness, at great personal risk, and now his good name is tarnished and his freedom is restricted, and the people who violated their oaths and broke the law are free.
Shame, shame.