The reason this Pakistani Muslim squatter is threatening the Japanese officials is because they have denied him a visa.
Thanks to Pamela Geller for finding this video again. It was taken down by Youtube a few years ago. This is the short version, but the rest of the story is below:
This Pakistani Muslim and family illegally entered Japan, claiming refugee status saying their life had been threatened by the Taliban. But his application was denied by Japanese officials. So he concocted a story about how his daughter was sick and needed medical help. While the Japanese were reviewing his application again, he grew impatient and barged into the immigration office, demanding a decision immediately, or else he and his family were going to commit suicide right there. He was quickly deported.