Reason Morning Links: More Names on No-Fly List, Shooting in Las Vegas, Regulating Tax Preparers

• Obama administration beefs up no-fly lists, announces security changes in response to attempted Christmas bombing.
• Man angry about dispute over Social Security benefits opens fire in Las Vegas federal building.
• IRS to take closer look at tax preparers.
• Dating website for beautiful people boots 5,000 members for putting on weight over the holidays.
• Debt-ridden Dubai debuts world's new tallest building. (Note: Jesse Walker mentioned this in yesterday's morning links.)