Black Lives Matter spins off Facebook safety check feature to highlight racism in US

In the week that began with Martin Luther King day and was bookended by the inauguration of Donald Trump as president of the United States, Black Lives Matter have launched a web app, Mark Yourself Unsafe, to highlight the dangerous levels of racism in the US.
The app spins off Facebook’s safety check feature, that allows users near a major crisis to let their friends know that they’re safe, instead inviting black people to mark themselves unsafe as a sign of solidarity against racis