A. Comments have the potential to turn a news website into a democratic polyphony.

B. But, there is also a danger of it descending to cacophony if readers do not express opinions in a language that behooves the requirements of a matured public sphere.

C. It can become a site for multiple concurrent debates, for registering dissent, for pursuing an idea and finally for building a polity of informed choices.

D. The role of the moderators is to retain the space for polyphony and reject voices that breed cacophony.

A. Delisting the content under the parameters of "the right to be forgotten" does not mean the information is taken down from the Internet, but that it's no longer readily available to the public through a simple search on an intermediary such as Google.

B. However, those who support this controversial legislation say people shouldn’t be unfairly dogged by inaccurate, irrelevant, or outdated information that turns up when their name is put into a search engine.

C. The Court of Justice of the European Union established a "right to be forgotten" in a landmark decision in May 2014, allowing Europeans to ask search engines to delist certain links from results they show based on searches for that person’s name.

D. A number of other countries, including Russia, have proposed their own versions of the right to be forgotten, which has led campaigners for freedom of expression to warn that such decisions could limit what content is readily available online in these countries.

A. But that would require a tough look at the economy, at the dearth of productivity, and at how it might be possible to restore conditions of growth. It would require serious investment, risk-taking, and nerve.

B. If those currently carping about the tax affairs of the rich really did care about raising tax revenues, they would concentrate on raising the volume of wealth that can be taxed.

C. The problem with the eagerness to recast economic problems, from a failure to cut the deficit to the continued inability to restore conditions of growth, as a moral issue and an erring on the part of selfish individuals who just aren’t giving enough back, leaves the real problems untouched.

D. These are not qualities today’s political class have in abundance. So, instead, they continue to project blame, singling out individuals for moral censure in the hope that they will increase their payments to the state.

A. A more vital, dynamic and inclusive form of democracy is generated as the risk of corruption reduces, election fever abates and attention to the common good increases.

B. As those who have been drafted are exposed to expert opinion, objective information and public debate, voting is not simply based on gut feel, but careful deliberation.

C. Renaissance states such as Venice and Florence experienced centuries of political stability by practicing democracy on the basis of sortition, or drafting by lot.

D. With sortition, everyone does not vote on an issue few understand, but a random sample of the population is drafted to come to grips with the problem, in order to take a sensible decision.

A. With vaccination, arguably our strongest and most cost-effective defense against infectious disease, urbanization is already presenting challenges.

B. It used to be the case that the one-in-five children missing out on a full course of even the most basic vaccines lived in remote rural communities.

C. Without strong health systems in place, the higher the population density the more difficult it becomes to prevent and control outbreaks, and not just because of the increased risk of contagion.

D. Today, we’re increasingly discovering that many of these hardest-to-reach children are in marginalized urban communities – right in the heart of cities, often hiding in plain sight.