• First of all, all of the security guards putting in extra hours.
• Don't forget the price of all the receptions, food and gifts.
• The planning and then advertising of road closures and changes in public transportation. I wouldn't be surprised if people got paid overtime to work on it.
• Extra travel time for those inconvenienced. And extra payments to babysitters, since everything took longer.
• Businesses and museums which lost customers for days on end, including Lag B'Omer, a school vacation day.
• Doctors and other professionals whose patients and clients couldn't make their appointments, and those who were billed even though they tried to come and didn't.

That's just a start. What would you add? Do you have a shekel/aggorot, dollar/cents estimate?

And about security, remember that Pope John Paul II was shot at the Vatican, proving that most tragedies, accidents and deaths happen close to home.