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Hello and welcome to assignment here on the BBC World Service,

with me, Maria Margarones.

I'm in Hungary to find out how the country's responding

to the refugee and migration crisis

that's affecting so much of Europe.

So we're just coming into Mariana Nostra,

which is a small town-battern hour north of Budapest by train,

where there is an old monastery, which is also a prison.

This prison is key to Hungary's hard-line migration policy,

which is angered European leaders and the United Nations,

and boosted Prime Minister Viktor Orbán's popularity.

Is that it?

This is the prison?

This is the monastery.

It's beautiful.

There's a baroque church with a buttery yellow facade

glowing in the afternoon light, and an arched medieval doorway.

But round the back, we're ushered through a high-barred gate.

Last summer, Hungary decided to fence its southern border.

...