“As macabre as it is to try and wrap your brain around,” said one counterterrorism official, this circuitry could be placed in the chest cavity near the heart to mimic the location of a pace maker, for instance, should a hand wand be used to isolate metal inside a person.”

“This advances a whole new way of thinking about [jihadist] suicide bombers” and how to be on alert to them from “a security perspective,” the official stressed.

Authorities like Dr. Carl Ungerer, director of the National Security Project at the Australian Strategic Policy Institute, believe that the Al Asiri case will heat up discussion about scanning technologies, like whole body imagers.

Whole body imagers though aren’t likely to detect explosives that are hidden inside a person - they're designed to detect what’s concealed underneath a person’s clothing.

Some sort of penetrating transmission X-ray scanner would most likely have to be used to detect explosives inside a person, but safety questions about the level of radiation emitted  from such devices would have to be addressed, authorities explained, noting that up until now, “we haven’t been thinking about designing machines to look for bombs inside people,” as one put it.

"Standard airport security is not going to detect" a bomb that's inside a person, terrorism expert expert Steve Emerson told the New York Post. "You need a much more intrusive type of X-ray machine that can actually see inside body cavities."

Counterterror authorities say there'd been plenty of intelligence indicating that jihadists had been working on all sorts of bizarre methods for carrying out suicide attacks, including the method of Al Asiri's suicide bombing. Jihadist terrorist organizations will undoubtedly improve on his technique, they said, stressing that we're likely to see attacks using improved versions of internally concealed bombs - including bombs surgically implanted into a jihadist suicide bomber.

"Never underestimate the true believer," one of the authorities warned.