CLEAN : Charlie Hebdo: London police observe minutes silence

The video focuses on remembering the tragic events in France and paying tribute to those affected. It highlights the ongoing situation in Paris and the collaboration between European countries. The emphasis is on remembrance rather than discussing security measures, although a review of security posture is mentioned. The situation is dynamic, with information constantly changing.

What is emphasized about the security posture in relation to the events?

What does the speaker mean by 'information is constantly changing' in the context of the events?