welcome to the whole story. i m anderson cooper in tel aviv. the october 7th attack by hamas, left at least 1,400 people dead, 200 people held hostage according to israeli officials and many more people are still unaccounted for. in response, israel began a bombing campaign in gaza. according to the hamas health ministry, 4,000 have died so far. the story of hamas is complex. its roots date back to thehe formatioion of israel in 1948. it has many factions, including the so-called military wing that perpetrated the terror attack. sara sidner brings us the whole story on hamas, how they were warmed, what the ideology is and how they evolved over the decades. some of the images you see in this hour may be disturbing. pure, unadulterated evil. i can t even try to comprehend these monsters. terrorists. this is not islam. they should be spit out. we cannot expect that israel will continue to blockade gaza. deprive them of their freedom and assume they will not resis