JTAC rose to public prominence following the terrorist attacks in London in July 2005. Media reporting highlighted a reduction in the threat level from "Severe General" to "Substantial" based on the assessment that the risk of an attack was at its lowest point since &lt;a href="September%2011%2C%202001%20attacks"&gt;9/11&lt;/a&gt;. These news reports were the first release of threat gradings outside the Critical National Infrastructure.