The crisis heightened when large crowds spilled out in recent weeks to protest American beef imports.
The intervention in the Somali crisis heightened the existing tensions with Eritrea, which supported Somalia's rebels.
And now, with the regional political crisis heightening, WhatsApp is being used more and more for co-ordinating and mobilizing direct actions — as a form of (thus far) peaceful protest aimed at furthering the Catalan independence cause.
When tensions over the hostage crisis heightened, his entry to the US was denied and his layover became permanent.
When tensions over the hostage crisis heightened, his entry to the USA was denied and his layover became permanent.
The still prevailing world economic crisis heightened various social problems; some of the more alarming are the ones relating to the aging of most developed countries [ 1].
The renewed currency crisis also heightens the economic challenges facing President Mohamed Morsi as his administration tries to calm the panic caused by his move to push through a disputed new constitution in the face of widespread and passionate opposition.
Investor fears of an Irish crisis were heightened by reports that growth might be slowing in China.
Now and then, the air of crisis is heightened by a row over so-called "bad language".
If anything, some believe that the crisis has heightened the creativity of Belgians, encouraging local collectors to redouble their support of the local art scene and galleries to push their artists beyond Belgian borders.
