This is a tad worrisome. After watching this video, i am wondering why these government employees are expressing their readings in counts per second instead of the universally accepted and normally used counts per minute. Here's the deal - at 130 counts per minute, alarm bells go off with the EPA and they start investigating the situation.
If these readings on video are truly in counts per second (they clearly seem that way), this would imply readings of 1440 counts per minute for the gentleman's thyroid and 360 cpm for the shoe measurement - both way over what is considered to be safe levels. I am almost certain about this, and it would make complete sense. Passengers from Japan arriving in Korea and other countries have tested high as well.