Russian drones struck Ukraine's National Academy of Sciences in the historic heart of Kyiv on Monday, in the latest deadly daytime attack on the capital. Volodymyr Zelensky has long been pleading with Ukraine’s allies for more military aid to fend off Russia. But Ukrainian weapons producers say the country could be bringing in significant revenue of its own, if only they were allowed to export their products. FRANCE 24's Gulliver Cragg reports from Kyiv.