the first time in more than 60 years an american president has met with a cuban president inside the uszthe first time castro has attended a u.n. general assembly. castro, using his first time on the world stage to call for an end to the u.s. embargo on cuba. >> translator: now, the unconflict process begins towards the normalization of relations. >> reporter: president obama, in the meantime, also cheered a summit push in world leaders to support u.s.-backed forces in the fight against isis and other violent extremist groups, noting setbacks in syria, iraq and afghanistan adding he is confident the militant group will be defeated in the long run. >> we have to commit ourselves to build diverse, tolerant inclusive societies that reject antimuslim and antiimmigrant bigotry. it creates the divisions, the fear and resentments upon which extremists can prey. >> the president again stated his commitment and the willingness to work with any country to fight isis. abc news, new york. >> tonight, tesla will unvail its new model x. after nearly two years of delays, the ceo is expected to annals s