     Sochi also illustrates Russia’s continuing troubles in the
north Caucasus. After the twin suicide-bombings in Volgograd,
430 miles (690km) north, at the end of December, Sochi, a resort
town of 400,000 people, has been turned into a fortress guarded
by around 100,000 security and military personnel. Missiles
bristle in the mountains, high-speed boats and submarines patrol
the coast, and drones watch from the sky. Russia’s 58th army,
last employed in a war against Georgia in 2008, will secure the
southern border. Instead of opening up the country to tourists,
these games are likely to be remembered as the most closed in
history. Russia’s security agencies are issuing special
passports to all spectators to filter out not only potential
terrorists, but also political troublemakers.  The tight
security is reminiscent of the 1980 Moscow Olympics, when non-
Muscovites were barred from the capital and undesirables shipped
out. These are not the only parallels. Both games are marked by
hostility between Russia an