Passengers wait for a train in the Vienna underground, 3 May 2006. Recent terrorist attacks have demonstrated the vulnerability of urban and regional public transport systems. (OSCE/Mikhail Evstafiev)
The Nurek hydro-electric power station on the Vakhsh River in Tajikistan, some 75 km east of the capital Dushanbe, 27 February 2008. (OSCE/Mikhail Evstafiev)