Lawyer Vincent Wellens chats to Lisa about an unfortunate position some 'Accidental Americans' find themselves in, and how this fits into a bigger debate around differences in data privacy across continents.

Some Europeans born in the U.S. but with no further ties there are finding it hard to open bank accounts and get mortgages in Europe due to a tax law President Obama brought into force in 2010 called FATCA. The United States and Eritrea are the only two countries in the world who base their taxation system on citizenship rather than residency.

The situation gets further complicated when these Accidental Americans don't have a social security number. And the whole situation also highlights the issues with data sharing between Europe and the US, where the rights of citizens' privacy differs.