A German-Israeli artist has stenciled what he says are offensive tweets on the sidewalk outside Twitter's German headquarters in the city of Hamburg.
Social media networks have faced criticism for not doing enough to prevent hate speech on their platforms.
Ira Spitzer has more from Berlin.
IN: "Shahak Shapira said…"
OUT: SOC
DUR: :34
GENERIC: h ttp://www.fsnradionews.com/feeds/0809twittergermany-is-generic.mp3