1/17 Italian Prime Minister Silvio Berlusconi visits the italian island of Lampedusa on April 9, 2011. Europe will not be able to "shirk" responsibility over the immigration problem, Italian Prime Minister Silvio Berlusconi said as around 26,000 undocumented migrants have arrived in Italy so far this year, including some 21,000 who said they were from Tunisia, and claimed they were fleeing a dire economic situation after the political uprising in January. AFP PHOTO / FILIPPO MONTEFORTE (Photo by FILIPPO MONTEFORTE / AFP)