Scientific or technological advancement from the last 20 years

Identify a scientific or technological advancement from the last 20 years that has been both good and bad for society. Explain" rel="nofollow">in why the advancement can be viewed both positively and negatively. What is your personal opin" rel="nofollow">inion on its value to society (good or bad) and why do you feel this way? Provide at least one source for supportin" rel="nofollow">ing evidence