Pakistan on Wednesday extended for a year the stay of Afghan refugees who live in the country legally amid the ongoing forced expulsion of illegal immigrants. Pakistan began last year a massive crackdown on illegal immigrants. More than half a million Afghan refugees have since left the country for their war-battered homeland, according to official statics. Islamabad early this year announced it would also expel those Afghans who are registered as refugees by the United Nations High Commission for Refugees (UNHCR). But the Cabinet of Prime Minister Shehbaz Sharif has now allowed the legal refu…