 The airport faced ongoing operational challenges , including a computer virus that shut down the automated luggage bomb @-@ scanning system in June 2007 . A study by the International Air Transport Association ( IATA ) released in July 2007 found the airport unsafe , citing numerous spots where checked passengers can meet people who have not passed through security checkpoints . 
 The airport faced ongoing operational challenges , including a computer virus <a href='null_relcl' title='1'><mark>that</mark></a>shut down the automated luggage bomb @-@ scanning system in June 2007 . A study by the International Air Transport Association ( IATA ) released in July 2007 found the airport unsafe , citing numerous spots where checked passengers can meet people <a href='null_relcl' title='2'><mark>who</mark></a><a href='been_done' title='3'><mark>have</mark></a> not passed through security <a href='negative_concord' title='4'><mark>checkpoints</mark></a> . 
The airport faced ongoing operational challenges , including a computer virus shut down da automated luggage bomb @-@ scanning system in June 2007 . A study by tdaInternational Air Transport Association ( IATA ) released in July 2007 found the airport unsafe , citing numerous spots where checked passengers can meet people done not passed thru security no checkpoints .