World's most powerful women

Hillary Clinton is the 67th United States Secretary of State, serving in the administration of President Barack Obama.
She was a United States Senator for New York from 2001 to 2009. As the wife of the 42nd President of the United States, Bill Clinton, she was the First Lady of the United States from 1993 to 2001.

Angela Merkel is the first female Chancellor of Germany. In 2007, she became the second woman to chair the G8, after Margaret Thatcher.
She played a central role in the negotiation of the Treaty of Lisbon and the Berlin Declaration. In domestic policy, health care reform and problems concerning future energy development have thus far been major issues of her tenure.

Dilma Vana Rousseff is the president of Brazil. She is the first woman to hold the office. Prior to that, in 2005, she was also the first woman to become Chief of Staff of Brazil, appointed by then President Luiz Inácio Lula da Silva. In 2005, a political crisis triggered by a corruption scandal led to the resignation of Chief of Staff José Dirceu. Rousseff took over the post, remaining in office until March 31, 2010, when she left in order to run for President. She was elected in a run-off on 31 October 2010.

 Indra Nooyi is the chairman and chief executive officer of PepsiCo. Nooyi joined PepsiCo in 1994 and was named president and CFO in 2001.
Nooyi has directed the company's global strategy for more than a decade and led PepsiCo's restructuring. In 2007 she became the fifth CEO in PepsiCo's 44-year history.

Sheryl Sandberg is the chief operating officer of Facebook. Prior to Facebook, Sheryl was Vice President of Global Online Sales and Operations at Google.