How Do You Keep People Safe When Peanut Butter Looks The Same As Explosives To An X-Ray?

This has not been shown in public. And no, it does not make coffee. Deep in the heart of the 17,000 attendees at Slush – the insanely busy, loud and dark conference in Helsinki – I found Karsa.fi a small stand with a big claim; they keep bombs off planes. Plane travel – while safer than it has ever been is still a concern for those in the planes as those on the ground. Terrorism – or rather fear of it – is at record levels (despite figures that suggest a decline in major incidents) so Karsa.fi's