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Thus , inherent in the power to borrow is an obligation , as the branch most closely connected to the populous , to exercise judgment in deciding when and under what circumstances to commit the nation and the public to indebtedness . This was first demonstrated by Kehrer ( 1989 ) , who noted that performance on an orientation-defined texture-segregation task at first improves as the target texture moves into the periphery and then worsens as the eccentricity increases further . There must be ' <' and '> ' ordering operators having the same left and right input datatypes as the mergejoinable operator itself . Algorithms that take output iterators can be used with ostreams as the destination for placing data through the ostream_iterator class as well as with insert iterators and insert pointers . In 2004 , the National SAFE KIDS Campaign took on the role as the certifying body , at the same time instituting many administrative changes . In fact , it might be the publicity as much as the enforcement that causes any objective improvements in measures of traffic safety .