Despite these caveats, Deaton s message is fundamentally positive.

Of course, any estimate of the implicit pension debt requires caveats and arbitrary assumptions.

Admittedly, there were warnings, but policy makers, particularly in advanced countries, did not follow suit.

After a period of calm that has now lasted a decade, dire economic warnings are back. Forecasts for the world economy are turning pessimistic, and economists in export dependent Argentina are finding much to worry about.

But this does not diminish the gravity of what is happening in Syria, or lessen the seriousness of Morell s warning.

Morell s warnings may yet be vindicated by default, if not by design.

And there is now a chorus of caution about new regulations, which supposedly might hamper financial markets (including their exploitation of uninformed borrowers, which lay at the root of the problem.) Finally, despite all the warnings about moral hazard, Western banks have been partly bailed out of their bad investments.

Finally, despite all the warnings about moral hazard, Western banks have been partly bailed out of their bad investments.

To cause a significant current evil in order to avoid a possible future danger when our knowledge is limited and our judgments uncertain is, Greenspan believes, unwise. In this, he is following a tradition of caution that extends from Edmund Burke to John Maynard Keynes.

In this, he is following a tradition of caution that extends from Edmund Burke to John Maynard Keynes.

Cautionary tales notwithstanding, collaborative research is on the upswing, and Polfus caribou scat project offers an encouraging example.

Whether the Panetta letter and the fresh warnings from Senators will increase pressure for a budget compromise or step up calls to exempt the Pentagon from cuts remains to be seen.

In his recent book The Skeptical Environmentalist , for example, the Danish public policy analyst Bjørn Lomborg cited data reported by the UN Food and Agriculture Organization (FAO) that showed increasing figures for global fish catches. Lomborg used the figures to argue that if catches are up, then the underlying ecosystems must be in good shape, despite all the warnings from experts.

Lomborg used the figures to argue that if catches are up, then the underlying ecosystems must be in good shape, despite all the warnings from experts.

Just a few days ago, Israel closed its airport in Eilat after receiving a warning that jihadis in Sinai planned to attack it with rockets.

Accusations of 'jihadist terrorism' against an Egyptian asylum seeker have fuelled political brawling in the lead up to Australia s election on 14 September 2013.

Such caveats have been drawing criticism from some diaspora bloggers, even though the move could mean easier visits between family members who have been separated by migration or exile.

The PM is choosing to ignore the warnings of scientists, relying instead on airport controls, noting that Madagascar s public health environment is protected by the lack of flights from the areas affected by the virus.

Thus, the electorate also made it clear that it no longer wanted the military involved in domestic politics, rejecting the generals warnings that the AKP would lead the country into the darkness of theocratic rule.

This act of local horror was also one of national significance, for it vindicated the late US diplomat and strategist George F. Kennan s warning that American foreign policymakers should hold in check their urge to act, especially militarily.

Morell s warnings may yet be vindicated by default, if not by design.

But aside from flood warnings, authorities and media networks in Cambodia and Thailand also published crocodile alerts to remind the people to watch out for crocodiles which escaped from flooded parks and farms.