The diplomatic leaks? They're more entertaining than anything. I really can't imagine any really strain from it, from what I've seen it's high school gossip level stuff. Some of it's pretty good, actually.
'In late 2008 the Moscow embassy wired back about the relationship between Russia's president, Dmitry Medvedev and the prime minister, Vladimir Putin, remarking that Medvedev, officially the senior partner, "plays Robin to Putin's Batman". '

"da na na na
na na na na
PU-TIN!
Holy Gazprom, Putin! The evil Kasparov is on the loose!
To the Slavmobile, Medvedev!
da na na na
na na na na
PU-TIN!"