Food and Drug Administration in 2004, is an injectable microchip that use radio frequency identification (RFID) technology.

Disaster preppers, survivalists, hunting enthusiasts and organic gardeners have been gathering annually in Kansas City, Missouri, for the past three years for the RK Prepper Kansas City Survival Expo & Gun Show.

It invites attendees to gain skills in emergency preparedness and offers a gun exhibition. The organizers said there were some 3,000 people and about 110 exhibitors at this year’s event, which was held in September.

The organizers told ABC News that recent news coverage of disasters, such as the hurricanes and wildfires that devastated parts of the country, seem to be encouraging more people to attend.

This year the organizers have held or have planned 17 shows across the country — an increase from five in 2015.

Below are what some attendees of the Kansas City show had to say.

Mark Kemp, Provo, Utah

Roger Kisby/Redux for ABC News

Mark Kemp holds a container of heirloom celery seeds at the Kansas City Survival Expo and Gun Show, Sept. 30, 2017, in Kansas City, Mo.

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I teach classes to try and get everyone to realize that hard times are coming.

An economic collapse is coming.

This is the belief of Mark Kemp, a disaster prepper from Provo, Utah, who has spent 15 years building independent food resources.

He expresses concern about the possibility of losing food security in the future. “FEMA is going to come and take all our guns and food storage because that’s how they are going to get you take the RFID chip,” he says. “I’m not taking the chip.”

The VeriChip, approved by the Food and Drug Administration in 2004, is an injectable microchip that use radio frequency identification (RFID) technology. It was originally intended to provide easy access to patients’ medical records and is now also used for access control and security. The chip is the size of a grain of rice and can be placed between a thumb and forefinger.

He refers to this identification chip of the future as the biblical “sign of the beast.”

Kemp is preparing to survive this future onslaught and is sharing his knowledge.

“I teach classes to try and get everyone to realize that hard times are coming. There are millions of people that we are going to need to feed in this country.”

Kemp tells ABC News that he has seed packs buried on his land, each with the potential to grow nearly 150,000 pounds of produce in 90 days.

He has plans to build several underground greenhouses.