Colombian general freed by rebels Alzate was the highest-ranking military officer captured by the rebels in 50 years of fighting and the incident immediately plunged into crisis peace talks taking place in Cuba. Determined not to scuttle two years of slow but steady progress, the rebels dispatched from Havana one of their top commanders, a member of the ruling secretariat known by his alias Pastor Alape, to oversee the handover deep inside the jungles of western Colombia. "I'm infinitely happy," Claudia Farfan, wife of the US-trained counterinsurgent expert, told The Associated Press after receiving a phone call from the president informing her that her husband was safe and in good health. I can smile again. Now free, the 55-year-old counterinsurgent expert Alzate will have to answer tough questions about why he apparently violated military protocol and ventured upstream into the rebel-dominated Atrato River dressed as a civilian and without his normal security detail. For its part, the rebel movement is calling for an immediate redesign of the two-year-old peace process, which it says is threatened by the government's refusal to accept a bilateral ceasefire. It considers military personnel prisoners of war and has expressed disbelief that Santos' government, rather than recognise the insurgents' goodwill offer to free the captives, has drawn closer to conservative critics who see it as being too lenient with the rebels. "We can't let the peace process that has reached such an advanced state, where key issues are being discussed, be subject to such rushed, thoughtless actions," the rebels said in a statement from Havana. "