The victory for the "No" vote in the October 2 referendum was a stunning setback to a nearly four year effort to end Latin Americas last major guerrilla war.
Polls had predicted that the peace agreement would easily pass but turnout was low and many voters were troubled by its lenient treatment of war crimes by FARC leaders.
Londono, known as Timochenko, said the FARC was responding to the loss with a massive effort to educate voters about the agreement and lay their doubts to rest.
"It is permitting us to correct what we didn't do in developing the agreements, which was a massive education effort," he said.
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So confident were they of victory that President Juan Manuel Santos and the FARC signed the peace agreement on September 29, days before the referendum.
Despite the thumbs down, both sides have agreed to continue to observe a ceasefire that went into effect August 29 and to discuss fixes to the accord.
He said government negotiators and the FARC "have been working judiciously to find solutions and think that soon, soon there may be news," he said.
Londono seemed disinclined to making changes to the accord on issues relating to justice and the rebel group's integration into the country's political life.
"It would be out of place to go back and revive a discussion that took us more than a year and a half, which was one of the hardest and most difficult discussions," he said.
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