barriers have popped up all over paris some in places where people sleep due to warm air from the metro christian reacts to them by tweeting with results. the city of paris had put in iron rods to prevent access you can still see the traces. they would have stopped people from being able to sleep there in winter when it's cold. i posted it on twitter and the next day the authorities removed the iron rods. if i was a good. christian began tweeting three years ago after his possessions were soaked by street cleaners in winter he wrote this is how the homeless are treated in paris within a few months he had over thirty thousand followers. out in the morning to say hello to the planet and at night to talk about what was going on on the street. i take a picture of my sleeping bag and say good night guys and go to bed. and people would own so goodnight see you tomorrow what i thought that was cool. people who live on the streets often feel like pariahs but christian potch has given them a voice and his activism has spread beyond paris people now send in pictures of barriers elsewhere in france this one