Considering how the technology for gathering global gossip has jumped in leaps and bounds recently, our methods for counterfeiting money have in comparison truly become stagnant, and the whole industry is crying out for innovative ideas. Thankfully, there's been a major breakthrough just in time for the holiday season: counterfeiters have taken to bleaching the ink off $5 bills and reprinting them as $100s, using only a computer and laser printer. They are undetectable to a counterfeit-detection pen, although there are ways to tell them apart: they look washed out, you can see Lincoln's face near the watermark if you hold it up to the light, and the embedded security thread will say "USA FIVE." They've been spotted in Park Slope stores lately, so owners may be wise to be a little suspicious if someone tries to buy a $3 item with a hundred dollar bill.