I don't mean to discourage you from upgrading to the latest version of your favorite program — but it is possible that the new version simply won't work.
But children are frequently discouraged from involvement with natural spaces, for health and safety reasons, for fear that they might get dirty or that they might cause damage.
The brotherhood was assembled, and once you made your knowledge claim before them, the entire brotherhood would mock, ridicule, question and otherwise attempt to dissuade you.
The doves, led by Ms Rice, argued for strong multinational sanctions to rein in Iran's regional ambitions and dissuade it from proceeding with building a bomb.