In light of the problem, an online campaign launched earlier this year is challenging real men to show their solidarity against domestic violence.

So, one of the reasons it's so challenging to prepare for this Y2K problem is, I want to argue, we have what I would call mainframe poisoning.

A bit more challenging, right?

Southern Punjab is seeing a rapid growth in the number of religious fanatics, and rooting out the problem there is much more challenging than acting in the Pashtun tribal areas.

A bit more challenging, right? (Laughter)

We believe that in the context of the rapid development of biotechnology and the increased threat of bioterrorism, the establishment of a verification mechanism within the Convention seems to be a challenging problem.

But striking the proper balance is challenging.

That will be particularly challenging for Bernanke.

That is an assumption that needs challenging.

Emerging and challenging issues deriving from implementation

Finally, Japan s external environment today is more challenging.

However, the situation in Cité Soleil remains challenging.

Apart from the debris problem, in the course of placing weapons in space, orbital groups of spacecrafts limit the accessibility of others, thus challenging the nature of space as an unlimited natural resource for all mankind.

Two serious problems make reconciliation in Afghanistan particularly challenging.

But success in Cairo might prove even more challenging.

This means that Europe probably faces another challenging year.

The selection of indicators has proven to be challenging.

Women challenging these norms are punished by violent means.

Emerging and challenging issues deriving from implementation and necessary

The year ahead will be challenging and rife with uncertainty.

Everything we do, we believe in challenging the status quo.

You can see the trapezoids are a little challenging there.

Fortunately, such a way immensely challenging but nonetheless feasible exists.

This category is especially useful for solving especially challenging problems.

In this challenging environment, administrative infrastructures have continued to function.

This has been particularly challenging in remote and insecure areas.

These have indeed been very challenging times for our Organization.

America, however, is not alone in challenging Al Jazeera head on.

Aside from clarity, it is important that group goals be challenging.

The Second Great Awakening was challenging women's traditional roles in religion.

Determining an optimal level of accountability for results is also challenging.

Some individuals and entities have filed multiple lawsuits challenging their listing.

Some local journalists and civil society groups are challenging the credibility of some of the results, and the CPC is challenging the outcome of the presidential vote at the INEC.

Opposition leaders do not like the subject, but they avoid challenging it.

Most should be able to grow strongly, despite the challenging global environment.

Of these three imperatives, sustainability may be the most complex and challenging.

It will be challenging, but maybe also healthy for our common future.

The journey from 2011 to now has been challenging, exciting and tedious.

Managing such a large and complex peacekeeping mission was a challenging task.

And this is a very challenging idea. It's a very challenging idea to mainstream media. It's a very challenging idea to anyone who has invested an enormous amount of time and expertise, and who has a lot of energy invested in the notion that he or she knows better than everyone else.

The Perpetuity Growth Model has several inherent characteristics that make it intellectually challenging.

Trafficking within countries had become commonplace, challenging the usual definition of the phenomenon.

Tired diplomatic postures and ritual incantations are not what these challenging times demand.

In 2004, UNHCR maintained financial stability, although it was another challenging financial year.

In fact, it is a challenging concept for both developed and developing countries.