(IME - 2008/2009 - 1ª FASE)
Leia as passagens seguintes e marque a alternativa correta de acordo com a pergunta que segue cada texto.
Martin Hellman, professor emeritus at Stanford, used engineering risk analysis methods to determine the failure rate for the United States’ nuclear deterrence strategy and came up with a shocking 1 percent chance per year that a nuclear war will break out. What can be understood about this passage?