'My blood ran cold' when Novichok was discovered in Salisbury, says scientist

The transcript discusses the speaker's initial shock upon realizing the involvement of Novichok, a highly hazardous chemical, in an incident. It highlights the challenges faced during the cleanup process at DSTL and the large-scale response required. The speaker emphasizes the evolving nature of threats and the importance of preparedness, describing the organization as a national asset in dealing with hazardous materials.

What does the speaker believe about the evolution of threats faced by the organization?

What preparations does the speaker mention in relation to potential hazardous events?