That anti-establishment sentiment seems like it could have presented a layer of challenge in bringing across some of Snowden's early conservatism, such as a moment early on in the film when Snowden winces at a left-leaning girl he just kissed (Shailene Woodley as Snowden's real-life girlfriend Lindsay Mills) and tells her "you taste like liberal".
Avoiding gluten has added a layer of challenges, and there are countries that are tough to visit as a celiac, where gluten reigns.
It ended up being a layering, compositing, tweaking challenge beyond belief.
Either way, it can be an experience layered with expectation, doubt, and challenge.
A compound containing three or five metal atoms, instead of the usual one, between two hydrocarbon layers challenges the boundary between discrete molecules and layered solids.
Unfortunately, we have seen harm done by social investors who want to do good, but do so by imposing their "silver bullet" solution on complex, multi-layers challenges -- poverty, food and water insecurity, violence and corruption.
Which leaves us with the dilemma of how to update our wardrobes... Instead of abandoning our inner Athena, we've decided to rise to the challenge, remove a layer of woolly jumper, and accent our winter basics with some serious, don't-mess-with-me jewellery.
In a preseason interview in Argentina, during his South American exhibition tour, Federer said one of his hopes was that the new wave of men's players would assert itself in 2013, providing a new layer of challenge at the talent-rich top of the men's game.
The results here potentially add a new layer of challenge to the evolution of cooperation, not only for cross-feeding, but potentially to other mutli-species systems.
As a young company, operating various international offices presents an extra layer of challenge.
Rapid establishment of such a layer may alleviate the current challenges associated with biodegradable vascular grafts.
