Meet Irmela Schramm, a 70-year-old woman who spends her days walking the streets of Berlin in search for racist, neo-Nazi messages that she can cover up. She’s been at it for over three decades, removing over 130,000 Nazi stickers and posters in that time, despite receiving threats from extreme-right political groups. See here how one woman is using her fine-tuned graffiti-removal skills to rid Berlin of hate propaganda, one sticker at a time.