You go to an airport and there are all kinds of restrictions in place, things you would be free to do when your at home but your banned from doing at the airport. Banning certain websites at the airport is not limiting your freedom of information. They are only forbidding you from looking at the website whist at the airport nowhere else. If your working in an office and the company blocks Facebook are you going to moan about them limiting your freedom of information because they won't let you look at Facebook when your in work?
Four Libyan soldiers said killed in battle with Islamists in Benghazi (Reuters)
from the article: 'Dangerous' political websites blocked from viewing at Israel's airport