According to a report from the World Economic Forum, the main threat facing the world in 2010 is the possibility of deteriorating government finances leading to full-fledged debt crises. Major economies have responded to the financial crisis by increasing deficits through stimulus packages and supporting private debt obligations. While this may have prevented a worse recession, it has raised concerns in financial markets due to the high levels of debt. Developed nations are at a particularly high risk, as many emerging economies have already taken steps to address their fiscal issues. The WEF think tank warned of the rising risk of sovereign defaults as governments continue to accumulate unprecedented levels of debt in an effort to stimulate their economies and combat the recession. He warned that increasing levels of unemployment could be a consequence, leading to various social and political risks. The report identified unsustainable debt levels and the looming threat of a financial crisis as top risks, along with underinvestment in infrastructure and rising health costs due to chronic diseases such as Alzheimer's and diabetes. Other imminent dangers included the possibility of asset price collapse, risks related to Afghanistan, and a potential slowdown in Chinese growth impacting employment, sparking social unrest, and harming exports. The report also highlighted the risk of developed nations accumulating excessive debt levels, stating that debt crises would inevitably result in social and political repercussions, including higher unemployment rates. Zurich Financial Services' group chief economist, Daniel Hofmann, emphasized that government debt levels exceeding 100 percent of GDP, a path taken by the United States and the UK, were clearly unsustainable. Investors may become fearful and question the sustainability of high debt levels, leading to sovereign debt crises and defaults. Dubai and Greece serve as early warnings that should not be ignored. Concerns over Dubai, Ukraine, and Greece have affected global markets, with the United States and United Kingdom also facing potential risks. The WEF report emphasizes the need for tough decisions on when to gradually withdraw fiscal stimulus to sustain recovery without risking sovereign debt deterioration. The report also highlights a governance gap between short-term pressures and the need for long-term decisions on issues like health, pension reform, and climate change. The report mentioned that not enough was being done to tackle the problem of underinvestment in infrastructure, which could have negative effects on food and energy security. The World Bank estimates that $35 trillion will be needed for global infrastructure investment over the next 20 years. The report also highlighted the increasing financial burden from chronic diseases due to longer life expectancies and unhealthy lifestyles, which should be addressed through prevention campaigns promoting healthier habits by both developing and developed nations. The report emphasized that the biggest threats to the world today may come from gradual failures or slow risks, as the impact of these failures can be underestimated due to their gradual emergence over time.