Last night President Obama told Jay Leno that he’ll be attending the G20 summit in St. Petersburg, but this morning he cancelled a planned summit with Russian president Vladimir Putin over Russia’s refusal to send Edward Snowden, the fugitive intelligence analyst, to the U.S. to face leaking charges. Leno brought Putin into the conversation last night, but Obama’s team obviously felt it wouldn’t be fitting to blow off Putin while chatting amiably on the Tonight Show couch.