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You're listening to assignment on the BBC World Service

with me, Nina Robinson, at a protest meeting in central London.

There's a hall packed full of people listening

to speeches campaigning against a radical set of new reforms

to the British welfare system.

The next person on stage is a 16-year-old schoolgirl.

Her name's Sarah.

I used to be very nervous in terms of giving class presentations in school.

I'm always the person that kind of shakes and gets very nervous.

But since this situation, I think it's because I'm speaking about what I'm passionate about.

The nerves kind of override you.

Unlike other teenagers who might spend their Saturday afternoon's out shopping with their friends,

Sarah is here to give a politically charged speech about how she and her family

are facing the prospect of eviction from their home.

They could evict us at any minute.

They could call and say you have to be out tomorrow morning at eight o'clock

and then we'd have to leave.

I'm Isabelle Koonahan Sanchez and this is my daughter Sarah.

We have an eviction notice.

...