Science and Technology as a Threat to Human Existence?

Germ warfare,Atomic bombs, War weapons, Toxins, Genetically Modified food,Cloning, Serums attacks, etc etc....and the list goes on and on

science and technology has a great inpact in human life they bring comfort to people for example Gsm u can easy talk to someone far from u rather than for u to enter bus. it safey time money and engergy. television u can easyly view what is happening anywhere in the world. can u see too.