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Currently , AWACS-unique and Joint STARS-unique workstations require air battle managers to move from station to station to perform different functions . Like most parents I cannot afford the costs of paying for my child to travel into town everyday in order to have something to do not only that when she gets there again theres more costs , it costs to go swimming , bowling to go to the pictures etc. I hear you all saying but these things cost us when we were younger but unlike todays children we were able to get part-time work so we could help with the cost . So it does raise the question you've asked , is there ever an example in which you can ban speech and then put the affirmative burden on the speaker to show with evidence and an affirmative defense to a prosecution that their speech somehow comes within a safe harbor and the answer is no . In support of this study and in order to permit necessary political evaluations concerning the military alternatives available , the JCS were asked to furnish their views on the following issues : ( 1 ) the overall military capabilities of the DRV and Chinese Communists with respect to logistical capacity , geographical areas of operation , time required to initiate operations , and capacity for concurrent reactions in different regions ; ( 2 ) military actions against NVN , using air and naval power only , which the GVN might undertake alone or which the U.S. might undertake both with and without public acknowledgment ; ( 3 ) NVN targets , attack on which would be most effective in inhibiting particular DRV military capabilities ; ( 4 ) course of action likely to bring about cessation of DRV support for the conflicts in Laos and South Vietnam ; ( 5 ) action most likely to deter communist attacks on various parts of Asia in the event of a large-scale communist reaction to attacks on NVN ; ( 6 ) the extent to which the United States could counter such reactions , using only air and naval operations and different ordnance combinations ; and ( 7 ) modifications needed in current contingency plans to provide for U.S. responses depending " primarily upon air activities rather than the intervention of substantial U.S. ground forces . At the same time , discussion agreements provide carriers a forum to talk about pricing policies , a mechanism for initiating trade-wide rate actions , and a system for providing members with up-to-the-minute feedback on individual pricing decisions .