Drivers wait next to their parked lorries on the M20 motorway, which leads from London to the Channel Tunnel terminal at Ashford and the Ferry Terminal at Dover, as part of Operation Stack in ... more 
Drivers wait next to their parked lorries on the M20 motorway, which leads from London to the Channel Tunnel terminal at Ashford and the Ferry Terminal at Dover, as part of Operation Stack in southern England, Britain July 31, 2015. Prime Minister David Cameron drew up plans to help France tackle a spike in attempts by migrants to enter Britain illegally via the Channel Tunnel, but warned there was no quick fix. Cameron is under pressure to deter the migrants, many of whom have travelled from Africa and the Middle East, after disruption to cross-Channel passenger and freight traffic. REUTERS/Neil Hall less 
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Reuters | Photo By NEIL HALL / REUTERS
Fri, Jul 31, 2015 10:08 AM EDT