WW2 Bomb explosion

[swift]

Tonight in central Munich an American bomb from ww2 was brought to explosion after disarming has failed.

Video of explosion is in the following link.

Interesting points:

The short dry sound and the time delay.

http://vimeo.com/48399328

EDIT: For interested parties: It was a 250 kg bomb with delayed delay fuse conceived to explode several hours after impact in order to interrupt the work of firefighters and rescue workers. Their fuse was constructed in a way to prevent disarming it.

EDITED IN ORDER TO NOT OFFEND ANY FUSE.