We'll just render this here Arabic text... and it's crashed!

A bug in Apple’s CoreText rendering engine in iOS 6 and OS X 10.8 Mountain Lion causes any apps that try to render a string of Arabic characters to crash on sight. The string of characters which can trigger the bug — which was discovered yesterday and has spread around the hacking and coding community — has made its way to Twitter, where even looking at it in your timeline will crash the app. The issue affects apps on iOS 6 and Mountain Lion but does not work on upcoming releases OS X 10.9 Mavericks and iOS 7 beta. So whatever bug the characters are triggering, they’ve already been fixed in future releases of the engine. This doesn’t help anyone still on iOS 6 or Mountain Lion of course. If you're curious about exactly which string is causing this problem, click here. But enough about that because the US government has said it will not sue to stop the states of Colorado and Washington from legalising recreational use of marijuana. The justice department said it would focus on preventing underage access to the drug and keeping drug cash from criminals, but declined legal action.