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Boats are capsizing because it is overloaded. reporter: the pope said such tragedies must not be repeated. they are men and women like us he said wounded, exploited, victims of war. the human toll is staggering. 10,000 rescued last week. more than 30,000 this year. an estimated 500,000 waiting to cross. many are fleeing conflicts in the middle east and africa paying thousands of dollars for a trip that could cost them their lives. more than 1500 lost at sea this year. we have seen over the past year a growing number of families arriving a growing numb of women, children 8,000 were children unaccompanied. reporter: there s no easy answer. italy has sentenced nearly 1,000 human traffickers yet refugees are still coming. this morning there are disturbing new details emerging ....

Human Toll , Paying Thousands , Waiting To Cross , Middle East , Lost At Sea , Children Unaccompanied , Human Traffickers ,