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Managers , directors , and investors are all blamed for corporate missteps . At the same time , our staff are internationally recognised for excellent , cutting-edge research , achieving grade 5 in the 2001 Research Assessment Exercise . " Supporters of the Minuteman Project , which patrols the U.S. - Mexican border for illegal immigrants , and immigrant rights activists , who showed up at the Minuteman event , became involved in a heated argument . The DEM for the Mojave region is representative of digital topographic data in existence for most of the Northern Hemisphere ( 90 - by 120-m pixels , nominal vertical accuracy of 30 m ) ; unfortunately , much of it is classified and not available for scientific research . Nonetheless the responsibility for correct classification rests with the waste producer so it is essential that the contractor has access to all information that will allow them to make an accurate classification .