Stop the presses and Start the Revolution! Forget about cops beating up, macing, and throwing crowd-control grenades at kids, we've got real news!
Each year, the DHS prevents thousands of hot young women from visiting the US.
Check out the following chart which shows the ratio of visa-free tourists to visa-required tourists by age and gender. The jump in the female ratio relative to the guy ratio around the "nubile" years implies that DHS is systematically rejecting young females from countries which do not have visa-free travel to the US (read 'the poor countries', i.e. any country other than Europe, Singapore, South Korea, and Japan).
The data comes from Table 29 of the DHS' Yearbook of Immigration Statistics 2010.
While I've been in Singapore, several Indonesians and Filipinas have commented on how difficult it is to visit the US (not study in the US, not get a job in the US, they're remarking how hard it is to just visit). The US consulate just keeps rejecting their visa applications repeatedly without providing any justification. They "get the message", travel to some other country, and the US loses out.