The National Security Agency has a challenge for hackers who think they're hot stuff: prove it by working on the "hardest problems on Earth."
Computer hacker skills are in great demand in the U.S. government to fight the cyber wars that pose a growing national security threat -- and they are in short supply.
For that very reason an alphabet soup of federal agencies
-- DOD, DHS, NASA, NSA -- are descending on Las Vegas this week for Defcon, an annual hacker convention where the $150 entrance fee is cash only -- no registration, no credit cards, no names taken. Attendance is expected to top 10,000. (more) (sing-a-long)