Artist paints offensive tweets he received outside Twitter's HQ to highlight how Twitter handles abuse

Facebook and Twitter are often under fire in Europe for failing to clamp down on hate speech on their platforms.

Germany, in particular, has recently passed a legislation, nicknamed the "Facebook law", under which social media companies could face a fine of up to €50m (£43m; $57m) if they fail to remove "obviously illegal" content after receiving notification or complaint. 

But for German-Israeli artist Shahak Shapira, that isn't enough. 

In a video that is going viral on YouTube, Shapira is seen stencilling some of the offensive messages he received on Twitter on the road in front of the company's Hamburg headquarters.  Read more...