Greek officials expect it to be more than 10%.
Greek officials previously put the cost of security at $1.2 billion, three times more than what Sydney spent in 2000.
Greek officials are greatly worried about the use of arms by foreign forces.
Earlier, Greek officials said they believed that most of the passengers were probably dead before the crash.
American and Greek officials do not even know the names of the group's leaders.
Three Greek officials were removed from office over the affair.
But Greek officials looked as if they were in the minor leagues compared with some of their neighbors.
She gave no reason for her refusal to cooperate with the Greek officials.
However, months later it was not clear whether Greek officials would accept the offer.
It now looks as if they will be held until the end of hostilities, Greek officials said today.