Posted by Mary on November 4, 2019, 3:20 pm, in reply to "Patel"
That should read 'downgraded' apparently.
MI5 kindly help.
'What the threat levels mean
Threat levels are designed to give a broad indication of the likelihood of a terrorist attack.
LOW means an attack is highly unlikely MODERATE means an attack is possible, but not likely SUBSTANTIAL means an attack is likely SEVERE means an attack is highly likely CRITICAL means an attack is highly likely in the near future'