From social and economic policy based on bad science and superstition, the paranoids running things are now entering a period of molecular eugenics:
“The AP is reporting that the US will soon be collecting the DNA of anyone who is arrested by a federal law enforcement agency and any foreigner who is detained, whether or not charges are eventually brought. Trying to collect DNA of ‘potential criminals’ as young as five, DHS spokesman Russ Knocke stated that ‘DNA is a proven law-enforcement tool.'”
from Slashdot, Collecting DNA