Myanmar Seizes Aid Supplies from the UN

This is my first post on the subject, because I have very little to say. I am not a student of the region, and what can you say about a tragedy like the cyclone and its associates storm surge.

This story, where authorities in Myanmar seized aid supplies from the UN, puzzles me.

I am aware of the paranoia and xenophobia of the military dictatorship there, but I'm not clear why they would not allow in aid workers in a time like this.