Burlingame suspects the TSA decided to allow folding knives because they are hard to spot.
But still, most firms found it hard to spot a value activity when it hit their factory floor.
If Mr Putin represents a new faction at the heart of power, it is remarkably hard to spot.
He's hard to spot at first among the jumble of multicolored fabric.
But the big choices coming down the track are not hard to spot for any disinterested reader of this report.
Nine years later, the Cyprus problem is still there, and any other supposed benefits of euro-zone membership are hard to spot.
The queen, who can be hard to spot, because Carniolans are so dark, had been marked with a tiny yellow dot.
But jagged edges are hard to spot, viewing angles are extraordinary and it shrugs off direct sunlight as a minor inconvenience.
That still leaves a huge reservoir for recruits, but they have been hard to spot in the uprisings sweeping the Arab world.
That sounds good in theory but is hard to spot in practice.
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It also means that it is hard to spot the difference between Mercosur and the South American Union, a broader but shallower group.
The Kindle's light however, is hard to spot, thanks in part to a much thinner bezel: you can't just angle the reader and see the lights here.
Because of an accounting quirk--they are subtracted from expenditures rather than considered revenue--they actually make the government appear to be spending less, making them particularly hard to spot.
Music and movie files shared in this way can be hard to spot because it travels via the same network port as other net traffic, said Mr Hockaday.
Fakes can be hard to spot, but the best traders train sales staff to do just that: become experts in the subtle signs of bad goods in their areas of specialty.
The concrete structure nestled in the Coed Coesau-Whips Woodland near Rudry, between Caerphilly and Cardiff, has been overgrown for 60 years, but even then it would have been hard to spot.
If he wanted to make any money himself, he would have to appeal not to the catwalk instincts of cattlemen, which were hard to spot, but to wannabe easterner cowboys who lived in, say, New York.
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People are paying cold hard cash on the spot to have their basements drained.
But the 23-year-old, who featured at the World Cup finals, intends to work hard to keep his spot.
The design is even collapsible and battery-powered in the event you'd like to hand out hard copies on the spot.
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If we retell the story from the beginning, how hard is it to spot the suspect, the victim and even the likely murder weapon.
Furthermore, it may well be hard for investors to spot the difference between a fund manager who is able to produce a high, but volatile, long-term return and one who is simply erratic and incompetent.
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The game combines the nuclear tragedy of 1986 with elements of the 1979 film by Andrei Tarkovsky and original novel Roadside Picnic in which forces unknown have sent physics awry, producing hard-to-spot anomalies where your next step could be your last.
However, Gordon D'Arcy has been pressing hard to regain his starting spot while Andrew Trimble is also in contention after some impressive recent performances for Ulster.
It's hard to ignore the soft spot Allen likely has towards the platform he fostered for years, but his preview still offers a unique perspective on what many of us will see in three weeks.
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