If you want to improve your oratory skills, the president of the United States is a great person to learn from. Read on to discover why.

Understand why the war in Afghanistan could turn into an authentic nightmare for Barack Obama, unless he gets commitments from regional powers like Iran, Pakistan and India, aside from Russia, China and the EU.

• The "carrot and stick" policy in Afghanistan
  por Alberto Priego

It is impossible to understand or act on the intense collapse of the American and global economy without taking the ethical failures into consideration.

The renovation of infrastructure, the launch of an efficient, green industry and the improvement of the health care and social security systems: these are the three pillars of Obama’s political economy to respond to the crisis. The risks? Racking up an exorbitant public deficit and adding more difficulties to his term, say the skeptics.

• Barack Obama's problem
  por Ricardo Israel Zipper

A policy of pressure on the Afghan government, combined with the outstretched hand that the appointment of Richard Holbrooke constitutes: this is the strategy that the new American administration is hoping to implement in order to stabilize Afghanistan, a country that could not be conquered by neither the Greeks, the British nor the Russians, and whose instability threatens to spread throughout the region.

Barack Obama has done more for the environment in a week than George W. Bush in eight years. However, the road is littered with obstacles, and the economic difficulties and challenges abroad can strongly influence any green advancement in the future.

• The ecologist movement gathers force in the United States
  por Heike Pintor Pirzkall

This very serious crisis and the arrival of a leader with ideas have coincided. Obama has brought back hope for another renaissance to the world.

While Obama has raised many hopes and achieved a rhetorical break with the totalitarian language of the Bush administration, his choice of advisers indicates regression rather than progression. Yet if his promise turns out to be meretricious, the world’s rocky relationship with the United States will deteriorate even further.

Learn why the enormous expectations placed on the president-elect of the United States are precisely Obama’s biggest problem.

• Barack Obama, the dream chaser
  por Gustavo Palomares