http://www.frontpagemag.com/Articles/ReadArticle.asp?ID=23693
Stephen Brown
"The failure of two suitcase bombs to explode on separate German trains most likely prevented Germany from joining the ranks of London and Madrid on the list horrific commuter bombings.
The first bomb was discovered on a 120-passenger regional train that ran between Aachen and Hamm, cities located in the north-western German state of North Rhineland-Westphalia. In Dortmund, and discovered a full, 11-kilogramm butane gas tank, an alarm clock, batteries, cables and a 4.5 liter bottle filled with a gas mixture. The second explosive, packed in a similar-looking suitcase, was also discovered in a regional train."