Washington Post: The French have been biking through the snow-capped Alpine resort of Tignes. The Italians have been sprinting in Sestriere, the posh enclave that hosted skiing events for the 2006 Winter Olympics. And England, at least for a time, pondered whether its players should sleep in specially designed low-oxygen tents. All three have won a World Cup. And in pursuit of another title, their national soccer teams have taken extraordinary measures to gird for the nearly mile-high …