Police walk past the compound where the battle took place As details of the raid emerged it became clear that the operation had been long in the planning. US officials said they received intelligence that Osama Bin Laden might be in that compound as long ago as last summer.
Kufuatia utafiti huo wadau wa elimu walitoa mapendekezo kwamba matumizi ya vitabu vya aina tofauti, hayana tija kwa sababu yanawafanya wanafunzi wajifunze dhana zinazotofautiana wakati wanatarajiwa kufanya mtihani wa aina moja.