Explosions triggered by female suicide bombers in trains at two Moscow underground stations killed dozens in the worst attack on the Russian capital since February 2004. National Post's Mary Vallis talks on the phone to Alan Broach, one of the passengers on the attacked subway line. Mr. Broach, a partner in the tax department in PriceWaterhouseCoopers’ Moscow office, was on his way to work shortly after 8 am when the second bomb went off.