Since recently, Google delivers its YouTube videos using the weak RC4 cipher. There are rumours that the NSA can break RC4 in real time, so it is recommended to disable this cipher in your browser, if you want to play safe. However, when you disable RC4, you cannot watch YouTube anymore.

Why does YouTube insist on RC? Is it better than without transport encryption? Is it just temporarily? And how can I still the videos without re-enabling RC4?