[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:06.67,0:00:10.69,Default,,0000,0000,0000,,It's estimated that \Nfor every 10,000 bills in the U.S.,
Dialogue: 0,0:00:10.69,0:00:13.18,Default,,0000,0000,0000,,one of those bills is fake.
Dialogue: 0,0:00:13.18,0:00:15.11,Default,,0000,0000,0000,,That may not sound like much,
Dialogue: 0,0:00:15.11,0:00:19.96,Default,,0000,0000,0000,,but it adds up to millions of dollars\Nin cold hard cash.
Dialogue: 0,0:00:19.96,0:00:23.72,Default,,0000,0000,0000,,Counterfeit money has the potential\Nto cause all sorts of problems,
Dialogue: 0,0:00:23.72,0:00:29.37,Default,,0000,0000,0000,,from leaving you short $20\Nto destabilizing national economies.
Dialogue: 0,0:00:29.37,0:00:30.54,Default,,0000,0000,0000,,But don't worry.
Dialogue: 0,0:00:30.54,0:00:32.78,Default,,0000,0000,0000,,You can help catch the counterfeits.
Dialogue: 0,0:00:32.78,0:00:36.15,Default,,0000,0000,0000,,All you need are some simple tools\Nand a bit of chemistry.
Dialogue: 0,0:00:36.15,0:00:40.07,Default,,0000,0000,0000,,First up, the anti-counterfeit \Ndetection pen.
Dialogue: 0,0:00:40.07,0:00:41.81,Default,,0000,0000,0000,,The pen looks like a highlighter
Dialogue: 0,0:00:41.81,0:00:45.42,Default,,0000,0000,0000,,and contains a solution \Nof potassium idodide
Dialogue: 0,0:00:45.42,0:00:47.94,Default,,0000,0000,0000,,and elemental idodine.
Dialogue: 0,0:00:47.94,0:00:50.52,Default,,0000,0000,0000,,It reveals of the presence of starch,
Dialogue: 0,0:00:50.52,0:00:54.15,Default,,0000,0000,0000,,which is commonly used \Nto strengthen regular printer paper,
Dialogue: 0,0:00:54.15,0:00:57.07,Default,,0000,0000,0000,,but won't be found in real money.
Dialogue: 0,0:00:57.07,0:01:00.82,Default,,0000,0000,0000,,That's because authentic bills\Nare made of cotton and linen
Dialogue: 0,0:01:00.82,0:01:04.49,Default,,0000,0000,0000,,and are threaded with tiny \Nred and blue fibers.
Dialogue: 0,0:01:04.49,0:01:08.33,Default,,0000,0000,0000,,That material is made by a single,\Nhighly-guarded company
Dialogue: 0,0:01:08.33,0:01:10.39,Default,,0000,0000,0000,,called Crane and Company,
Dialogue: 0,0:01:10.39,0:01:12.19,Default,,0000,0000,0000,,which has been printing currency
Dialogue: 0,0:01:12.19,0:01:18.39,Default,,0000,0000,0000,,since Paul Revere asked them \Nto help finance the Revolutionary War.
Dialogue: 0,0:01:18.39,0:01:21.44,Default,,0000,0000,0000,,The starch in many counterfeit bills,\Non the other hand,
Dialogue: 0,0:01:21.44,0:01:23.43,Default,,0000,0000,0000,,is made of two molecules:
Dialogue: 0,0:01:23.43,0:01:26.06,Default,,0000,0000,0000,,amylopectin and amylose.
Dialogue: 0,0:01:26.06,0:01:28.57,Default,,0000,0000,0000,,It's amylose that gives the fake away.
Dialogue: 0,0:01:28.57,0:01:32.42,Default,,0000,0000,0000,,Its long chain of sugar molecules\Nconnected by oxygen atoms
Dialogue: 0,0:01:32.42,0:01:36.19,Default,,0000,0000,0000,,forms a helical structure, like DNA.
Dialogue: 0,0:01:36.19,0:01:38.88,Default,,0000,0000,0000,,Iodide likes to squeeze inside this coil,
Dialogue: 0,0:01:38.88,0:01:43.34,Default,,0000,0000,0000,,forming a new compound\Nthat leaves a dark mark on the paper.
Dialogue: 0,0:01:43.34,0:01:47.46,Default,,0000,0000,0000,,However, in the absence of starch,\Nthere is no chemical reaction
Dialogue: 0,0:01:47.46,0:01:50.34,Default,,0000,0000,0000,,and the mark will look light yellow.
Dialogue: 0,0:01:50.34,0:01:53.26,Default,,0000,0000,0000,,So if the fake isn't printed \Non starchy paper,
Dialogue: 0,0:01:53.26,0:01:55.81,Default,,0000,0000,0000,,iodine solutions can't help you.
Dialogue: 0,0:01:55.81,0:01:59.82,Default,,0000,0000,0000,,That's one of the reasons \NU.S. biills printed since 1996
Dialogue: 0,0:01:59.82,0:02:05.40,Default,,0000,0000,0000,,have been chemically enhanced to include\Nanother counterfeit countermeasure:
Dialogue: 0,0:02:05.40,0:02:08.56,Default,,0000,0000,0000,,a strip that fluoresces under UV light.
Dialogue: 0,0:02:08.56,0:02:11.86,Default,,0000,0000,0000,,That's the same kind of light\Nused at black light parties
Dialogue: 0,0:02:11.86,0:02:14.75,Default,,0000,0000,0000,,and airport security lines.
Dialogue: 0,0:02:14.75,0:02:18.10,Default,,0000,0000,0000,,The polyester strip \Nprinted with invisble ink
Dialogue: 0,0:02:18.10,0:02:20.28,Default,,0000,0000,0000,,is just one millimeter wide
Dialogue: 0,0:02:20.28,0:02:24.55,Default,,0000,0000,0000,,and is found in different positions\Ndepending on a bill's value.
Dialogue: 0,0:02:24.55,0:02:26.86,Default,,0000,0000,0000,,If you hold your dollar \Nup to natural light,
Dialogue: 0,0:02:26.86,0:02:30.82,Default,,0000,0000,0000,,you can see the amount \Nand the word USA printed on the band.
Dialogue: 0,0:02:30.82,0:02:34.47,Default,,0000,0000,0000,,But under UV light, \Nthese strips really shine.
Dialogue: 0,0:02:34.47,0:02:39.54,Default,,0000,0000,0000,,They contain molecules that can be excited\Nby absorbing certain amounts of energy,
Dialogue: 0,0:02:39.54,0:02:43.97,Default,,0000,0000,0000,,specifically, that given off \Nby common UV light sources.
Dialogue: 0,0:02:43.97,0:02:47.61,Default,,0000,0000,0000,,As these excited molecules return\Nto their original states,
Dialogue: 0,0:02:47.61,0:02:52.90,Default,,0000,0000,0000,,they lose a bit of energy as heat\Nand then radiate the rest as light.
Dialogue: 0,0:02:52.90,0:02:56.08,Default,,0000,0000,0000,,Energy is inversely related to wavelength,
Dialogue: 0,0:02:56.08,0:03:00.31,Default,,0000,0000,0000,,which means that the longer wavelengths\Nhave lower energy.
Dialogue: 0,0:03:00.31,0:03:02.99,Default,,0000,0000,0000,,So the lower energy light \Ngiven off by the strip
Dialogue: 0,0:03:02.99,0:03:06.58,Default,,0000,0000,0000,,means longer wavelengths\Nthat fall in the visible range,
Dialogue: 0,0:03:06.58,0:03:10.53,Default,,0000,0000,0000,,and suddenly we can see that \Nwhich had been invisible.
Dialogue: 0,0:03:10.53,0:03:13.58,Default,,0000,0000,0000,,And if a glowing strip doesn't show up\Non a recent bill,
Dialogue: 0,0:03:13.58,0:03:16.86,Default,,0000,0000,0000,,you have a fake on your hands.
Dialogue: 0,0:03:16.86,0:03:20.16,Default,,0000,0000,0000,,For times when you're not dealing \Nwith counterfeit masterminds,
Dialogue: 0,0:03:20.16,0:03:23.54,Default,,0000,0000,0000,,looking for simple visual cues will do.
Dialogue: 0,0:03:23.54,0:03:26.85,Default,,0000,0000,0000,,Make sure the portrait \Nlooks lifelike and not flat,
Dialogue: 0,0:03:26.85,0:03:30.32,Default,,0000,0000,0000,,the seal has perfectly \Neven sawtooth points,
Dialogue: 0,0:03:30.32,0:03:32.69,Default,,0000,0000,0000,,the inked border is unbroken,
Dialogue: 0,0:03:32.69,0:03:38.18,Default,,0000,0000,0000,,and the serial number has precisely \Nequal spacing between each number.
Dialogue: 0,0:03:38.18,0:03:41.11,Default,,0000,0000,0000,,So the next time you come across \Nsome dubious dough,
Dialogue: 0,0:03:41.11,0:03:42.48,Default,,0000,0000,0000,,have a closer look,
Dialogue: 0,0:03:42.48,0:03:44.22,Default,,0000,0000,0000,,pull out your iodine solution,
Dialogue: 0,0:03:44.22,0:03:46.60,Default,,0000,0000,0000,,or take it to a rave
Dialogue: 0,0:03:46.60,0:03:49.33,Default,,0000,0000,0000,,and you just might catch a counterfeit.