President Emmanuel Macron tells Brazil that France is "at your side" as the country seeks to develop nuclear-powered submarines. "I want us to open the chapter for new submarines ... to take a hard look at nuclear propulsion while being perfectly respectful of all non-proliferation commitments," Macron says at the launch of a conventionally powered Franco-Brazilian submarine in Itaguai near Rio de Janeiro. "You want it, France will be at your side." Macron stopped short, however, of announcing specific collaboration on nuclear propulsion technology. SOUNDBITE