A large section of the public responded with predictable fury to recent revelations that a set of remains handed by North Korea to Japanese officials were not, as Pyongyang had claimed, those of abductee Megumi Yokota.

While roughly three out of four respondents to recent opinion polls feel that Japan should slap economic sanctions on Pyongyang, government officials and academics remain unconvinced by the merits of this course of action.

On Friday, the government is expected to disclose various documents, including Yokota's medical records, that Japanese officials analyzed after they were brought over from Pyongyang last month. It will also formally convey to North Korea the results of DNA tests carried out on the remains purported to be those of Yokota.