Answer: death of Osama Bin Laden.
Explanation:
The event that was the cause of Celebration in 2011 was the death of Osama Bin Laden, at the hands of the US forces. The Afghan terrorist leader of the Al Qaeda network was finally killed. This event brought together thousands of people, most of them victims of the 2001 attack on the Twin Towers.
The crowd gathered at ground zero, where security measures were taken for precautionary reasons, in order to avoid a possible attack again.
umm i dont know or i cant remember
Answer:
Government taxes, business regulations
Explanation:
It was so the delegates would be free to say what was on their minds. If anything about what they said would go to the public, there would be people who would be mad at them and thus possibly hurt them. It was to protect them.