Migrants walk along railway tracks at the Eurotunnel terminal on July 28, 2015 in Calais-Frethun. Attempts by migrants desperate to reach England through the Channel Tunnel reached a new peak overnight July 27/28, as about 2,000 migrants tried to enter the Eurotunnel terminal in the French port town of Calais, northern France. AFP PHOTO / PHILIPPE HUGUEN (Photo credit should read PHILIPPE HUGUEN/AFP/Getty Images)
