An estimated 22,000 asylum seekers currently in France are in a situation of legal limbo. They are deemed eligible to apply for asylum in the EU - but under what's known as the Dublin Regulation, they have to return to the EU country where they were first formally registered. That usually means Greece, Italy or Hungary - but can also be Germany or Sweden. Our team went to meet some of these asylum seekers in Paris, who now face the prospect of being uprooted again.