Federal Aviation Administration extended its ban on U.S. airlines' flights to and from Tel Aviv, Israel. Calling the decision a "mistake," Michael Bloomberg -- who arrived in Israel on El Al, Israel's national airline -- praised Tel Aviv Ben Gurion International Airport as most secure airport on Earth. "The real world is that there are things going on near airports all over the world. Ben Gurion airport, because Israel has been threatened since it was formed in 1948, is the most secure airport," the former New York mayor told CNN's Wolf Blitzer. "You have to take reasonable precautions but you cannot shut down everything just because one terrorist someplace on the other side of the world says I'm going to be a threat," he said. FAA bans flights to Israel for 24 hours U.S. airlines suspend flights to Israel CNN anchor on diverted Tel Aviv flight Map: Ben Gurion AirportMap: Ben Gurion Airport The ban now runs through 12:15 p.m. ET Thursday. The FAA said in a statement that it is "working closely with the government of Israel to review the significant new information they have provided and determine whether potential risks to U.S. civil aviation are mitigated so the agency can resolve concerns as quickly as possible." The agency did not detail what the "significant new information" is. But the Israeli government told CNN that Ben Gurion is safe from any rocket attack by militants in Gaza. "The security in Ben Gurion and in Israel is as good as it gets," said Jerusalem Mayor Nir Barkat. "The reality is that the risk coming to Israel is minimal, and if it would be larger we would take the initiative and tell everyone not to come here."