Security expert Will Geddes has explained how presidential candidates like Donald Trump are protected.
This follows a British man, Michael Sandford, being placed under arrest in Las Vegas on Saturday after attempting to grab a policeman's gun and fire at Trump.
The 19 year-old had allegedly been planning the attack for more than a year. Geddes, who works as a security consultant, highlighted how extensive Trump's security measures already are.
"He has a very strong secret service contingent," he told Julia Hartley-Brewer. "There are a number of different elements he'll have around his security, private detail nonwithstanding.
"He does have a number of threats, he has for a number of years, even prior to putting himself forward as a presidential candidate.
"It would be a significant egg on the face of the secret service if they don't have these measures in at the earliest opportunity.
"Anybody who puts their face into the public domain, particularly at such a high profile as he [Donald Trump] has, draws threats," he explained. "Within any risk assessment on a high profile VIP, when they're travelling or going to a particular location, you consider all the various different types of threats.
"You have to consider the spontaneous dynamic of an individual who may just turn up.
"This is why you have to ensure there are secure environments in which people will be delivering their speech."