| Nearly one year ago, the city of Boston and the entire country were on edge because what had happened at the Boston Marathon, with the explosion at the finish line. This article, written by NBC News, states, ?In one instance, according to the report prepared by investigators for the House Homeland Security Committee and copies of documents reviewed by NBC News, Tsarnaev was supposed to be pulled aside for questioning at JFK airport because he was considered potentially armed and dangerous, but he slipped through undetected because someone had misspelled his last name in a security database.? ?But no alert was triggered when Tsarnaev passed through Customs at JFK, because of the misspelling of his name on the second TECS note. The difference of one letter ? Tsarnayev instead of Tsarnaev ? meant that he was not detained or questioned despite the warning in his file, according to sources familiar with the report.? This is something that should be very alarming to everyone. Because of the misspelling, only one letter off, this tragedy would have had the potential to be prevented. When running background checks, how do you check for accuracy? MBI Worldwide strives to provide the highest level of accuracy to prevent situations, though not as severe, as the above example.