Biden Heads Home After Putin Summit: "I Did What I Came To DO"

Biden heads home after Putin summit: "I did what I came to do"; Putin calls talk "Efficient" as he denies, deflects on tough issues; Biden: I told Putin my agenda is not against Russia, it's for Americans; Biden spent "great deal of time" on cybersecurity, told Putin critical infrastructure should be off-limits to any attack; Biden made clear we have area of mutual interest with Russia; 

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