A compilation of news articles may be found on: http://news.google.com/news/story?ncl=http://www.bbc.co.uk/go/rss/int/news/-/news/world-latin-america-11223423&hl=en&geo=us
One person killed, two persons injured in a hydrogen explosion. For details see http://beforeitsnews.com/news/81/572/Explosion_at_California_water_fuel_research_company_kills_inventor.html.
Exploding hydrogen filled balloons injured several people in China during a celebration act. Friction between balloons is suspected to generate static electricity, providing then the ignition for the accident. For details see e.g. http://china.globaltimes.cn/society/2010-05/530686.html
The hydrogen-based ferry operated on the Alster, Hamburg, Germany caught fire during maintenance. The evil was not hydrogen but the batteries. The fire fighters successfully protected the hydrogen storage.
A German newspaper article is available at http://newsticker.welt.de/?module=dpa&id=24665034.
On 6th of April 9 am at the GE aviation site in Hooksett N.H. USA a quarter of a hydrogen tank (135 pounds) was incidentially released. The valve was opened during the installation. The staff in the vicinity was evacuated and the fire brigade managed to close the valve. That’s it.
For details see e.g. http://www.wmur.com/newsarchive/23066379/detail.html.
So the real world hits hydrogen cars too , see http://content.usatoday.com/communities/driveon/post/2010/03/gms-hydrogen-fuel-cell-fleet-getting-real-crash-experience/1. To my knowledge this is the second accident with a fuel cell car. Not only for statistics we need more hydrogen vehicles proving their inherent safety.
A massive explosion occurred at a refinery after a catastrophic pipe rupture on 4th November 2009. Some details are given in http://www.ksl.com/?nid=148&sid=8559722&autostart=y .
One balloon seller killed and 5 persons seriously injured by an hydrogen vessel explosion on 1st of November in Thailand. The related news is http://news.xinhuanet.com/english/2009-11/01/content_12368738.htm