why does the current generation of kids have no interest in math or science but obsessed with cell phone?

[math]

why does the current generation of kids have no interest in math or science but obsessed with cell phone, facebook, youtube, myspace, xbox, and twitter? they don't take school seriously at all. So with such trend, what is the future of US as economic, political and military superpower?
this results in incompetent government of future
on math and science scores, US kids don't make it in top 25 countries. Less than 1% of all bachelor degrees awarded annually are in math. now even many universities have lifted GRE and cumulative GPA requirement for graduate school of math.
i have bachelor degree in math and i took a course named " math 473, applied math". Only 6 students in the whole class.
in comparison, English or art history courses would have more than 50 students.