Since the attacks on american targets happened on september 11, 2001, americans have been required by their government and by social pressure to give up or limit certain freedoms that they formerly took for granted. americans now must endure onerous security checks at airports, have their communications and library records monitored through secret warrants, even in some instances give up the right to habeas corpus. the argument in favor of these actions has been that americans must sacrifice some civil liberties to obtain security, especially in a time of war. opponents argue that such intrusions amount to an unjustified abuse and extension of government power?