re: something I find odd about the London bombing investigation...
I may be wrong but I thought I'd heard this morning that it was not an exotic explosive but a certain (dunno whoch) low tech, high availability explosive. Also, heard that timers were found, implying that the bombs were not set off by suiciders. The bus may be a mistaken exception as some witnesses saw a young male struggling in a frustrates manner with a backpack's contents.