. >> this is carmen aristegui and sebastién barragán from "aristegui noticias." >> this is paul lewisow, writes a lot about nso. >> this is the "le monde" corner. this is martin, christophe, and i'm damien. >> usually, we see reporters at other news organizations as our rivals. we compete against them. we never want to share information with them because, you know, we want to keep our stories to ourselves. and this is just a different way of operating. this seeing other journalists as partners. >> we are really one group. one group with one goal-- publish those complex stories... (voiceover): we worked with more than 80 journalists. and we set publication date of july 2021 that gave us about a year to investigate the leaked list. the the names behind the for all the pphone numbers. identify that was crucial. withhone numbers only we can do nothing. the data is the beginning of the project. we need to find sources. we need to go on the field. this projects about who is spying on who in many countries, and those countries, most of them are very dangerous. ♪ ♪ >> we had a kaleidoscope of