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Information should be labeled " CRITICAL " if it is determined that special procedures should be used to ensure its availability . If taxpayers paid for those materials , taxpayers are entitled to examine them , too - - especially if those materials will be used to impose further regulatory costs on taxpayers . Existing gas supply networks could be used to distribute hydrogen for use in fuel cells in homes and cars , but only if the hydrogen has been generated from a sustainable , renewable energy supply . Should cross-cutting public service agreements be used to ensure delivery ? Cryptography can be used to ensure the confidentiality of data ( i.e ., encryption ) and to verify the authenticity and integrity of transmitted data . Your point that rendering the entire JSF component tree for even the smallest update is not very good for the scaling server side , is precisely where AJAX can be used to compliment the JSF functionality . They could be used to allude to the threat of , or at least the potential for , violence that was concealed by staged press conferences and rational rhetoric . The fund - - the repository for unspent federal Superfund dollars - - would be used to distribute money to each state based on the number of sites currently on the NPL ( distributing money to each locality would be preferable but probably politically unachievable ) . To have your name and faculty added , email greenpower@supra.usyd.edu.au with your name , faculty and student number ( which will only be used to ensure you are an actual Sydney Uni postgrad – ONLY your name and faculty will be listed ) .