A Sudanese migrant sleeps under a slide as an Israeli girl slides down it at Levinsky park in South Tel Avi, in this June 16, 2012 file photo. Italy stepped up calls for a change to European asylum rules on Sunday as neighbouring states tightened border controls, turning back African migrants and leaving hundreds stranded at the frontier in northern Italy.  REUTERS/Baz Ratner/Files ATTENTION EDITORS - THIS PICTURE IS PART OF THE PACKAGE "IN PLAIN SIGHT". TO FIND ALL 9 IMAGES SEARCH 'MIGRANT EUROPEAN'.