hello and welcome to the programme. it has become a familiar scene on the streets of paris, protesters dressed in black and police armed with riot shields. tear gas and barricades running battles taking place down the boulevards of the french capital. it is happening again and this time on may day. a mostly peaceful demonstration against president macron s controversial reforms of the pension system mired once more by scenes of violence. these are live pictures now of police firing water cannon and protesters. tension is particularly high today because a lot of the unions come at the top eight unions in france got together to call for people to come to the streets for the first time that s happened since 2009. also of course
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