The immigration officer smiled and chatted with each new arrival, briskly stamped his passport, and sent him on his way.

CNN: UNLEASHING MAID POWER

He also faced an illegal attempt by an immigration officer at the airport in Nairobi last week to block him from flying to neighbouring Tanzania, he said.

BBC: Kenya's Willy Mutunga 'threatened' over Kenyatta case

Sheardown was an immigration officer at the Canadian Embassy in Tehran when students and militants stormed the U.S. Embassy there on November 4, 1979, taking more than 50 Americans hostage.

CNN: STORY HIGHLIGHTS

Embarkation controls - which meant people leaving the UK were seen by an immigration officer - were ended in 1994 for those travelling from ferry ports and small ports to a European Union destination.

BBC: UK border controls - are they tough enough?

Immigration attorney David Leopold is a national executive officer of the American Immigration Lawyer's Association.

NPR: Immigration Law Difficult to Navigate

Now, the requirement that a police officer must determine the immigration status of an individual who they have a "reasonable suspicion" is in the country illegally extends to those instances where police respond to something as minor as city ordinance violations.

CNN: Rubio's troubling immigration flip-flop

And Mr D'Alema will find it equally hard to tackle the countless lobbies that make any reform in Italy so difficult: from rail workers to postal workers, from school-teachers to the officer corps, from politically motivated magistrates to the Christian pressure-groups that make sure the immigration laws are not implemented (this week, once again, hundreds of people landed illegally on Italy's shores).

ECONOMIST: Italy