D-day for Horner: What will happen today at Red Bull Racing?

It is an important day for Christian Horner, his team Red Bull Racing, and Formula 1 as a whole. Today, the British team boss is giving his views behind closed doors on allegations made by a Red Bull employee who accuses Horner of inappropriate behaviour. Whether Horner can ultimately stay on will depend entirely on the outcome of the investigation. On this (possible) D-day for Horner, we summarise all the events and take a cautious look ahead.