Recent searches into the email accounts of passengers arriving in Israel raises the question of how far the state can go in its airport security checks. It is one thing to search files located on a person's computer , but quite another to go through a person's cyberspace history.  By Jonathan Klinger News that the Israel Security Agency (Shin Bet) searches the email accounts of those who travel to Israel (first reported on by Mondoweiss) is quite disturbing. According to the report, several activists who crossed the border in to Israel were requested to open up their computers, connect to the internet and log in to…