Tensions mount during anti-pension reform protest in Nantes Thousands took to the streets of Nantes on the fourth inter-professional day of strikes and demonstrations against pension reform. Tensions with police led to several skirmishes and tear gas was deployed during the march. Unions are demanding the government drop its reform in their biggest show of strength in decades, with a record-breaking public transport strike now in its 36th day.(COMPLETES VIDEO 1NK7GI_EN) IMAGES AND SOUNDBITES