Drug traffickers and their ilk are not bothered by borders now, and they'll be even less concerned if Britain leaves the EU.
Why does the UK get money back on what it sends to the EU budget?
There is good reason to fear Brexit, but voting to stay in the EU is also a chance to restore the vision of the founding fathers.
And where do they come from?
From trade deals to climate change or biofuels, the European Union's green record is patchy at best.
Broadcasters who use the UK as a base for European channels could face upheaval.
Article 50 looks deceptively simple but the reality will be anything but that. Here's what's laid out in the law if the UK votes for a Brexit.
It's not hard to see why the EU is being blamed for the ills of a globalised world.
The British labour force has a lot to lose if EU students are turned off coming to the UK.
When all the evidence points in one direction, people can quite happily go the other. Whether it's Trump, Brexit or climate change.
Beneath the blur of Brexit claim and counterclaim, we seem to have forgotten that there's a deeper problem preventing economic recovery.
Both sides of the debate are promising to cut European red tape – which seems to mean cutting equality laws.
British citizens who have lived outside the UK for 15 years or more won't have a say.
The hopeful vision presented by pro-independence campaigners in Scotland has endured – even though they lost their referendum.
What makes people decide to leave the gang, and how can you convince them to stay?
News that men outnumber women ten to one in the EU referendum debate is not surprising – women have long been marginalised in news coverage.
The latest figures show a slight rise in migration to the UK, but there is nothing new to get excited about.
Giles Fraser thinks that 'Brexit recycles the defiant spirit of the Reformation'. How wrong can he be?
But always gamble responsibly...
If Britain votes to leave, residents of the Rock won't come along quietly.