S. Korea's parliamentary election

S. Korea's parliamentary election

SEOUL, South Korea - Han Myeong Sook (R), leader of South Korea's main opposition Democratic United Party, and her husband cast their votes to elect the country's new parliament at a polling station in Seoul on April 11, 2012. The election for a new 300-member National Assembly, South Korea's unicameral legislature, for a four-year term is widely seen as a weathervane of voter sentiment for December's presidential vote.

S. Korea election

S. Korea election

SEOUL, South Korea - Han Myeong Sook, leader of South Korea's main opposition Democratic United Party, campaigns in Seoul on April 10, 2012, ahead of a general election.

Election campaign in S. Korea

Election campaign in S. Korea

SEOUL, South Korea - Han Myeong Sook, leader of South Korea's main opposition Democratic United Party, speaks in Seoul on March 29, 2012, during a campaign for the country's general election on April 11.

Han elected leader of S. Korea opposition party

Han elected leader of S. Korea opposition party

TOKYO, Japan - File photo taken in Seoul on May 3, 2006, shows former South Korean Prime Minister Han Myeong Sook. South Korea's main opposition Democratic United Party on Jan. 15, 2012, elected her as its new leader.

Abe says N. Korea's reported nuclear test 'absolutely unacceptable'

Abe says N. Korea's reported nuclear test 'absolutely unacceptable'

SEOUL, South Korea - Japanese Prime Minister Shinzo Abe (R) speaks at a luncheon hosted for him and his wife Akie (2nd from R) by South Korean Prime Minister Han Myeong Sook in Seoul on Oct. 9. Abe said North Korea's announcement of a nuclear test is ''absolutely unacceptable.''

Abe says N. Korea's reported nuclear test 'absolutely unacceptab

Abe says N. Korea's reported nuclear test 'absolutely unacceptab

SEOUL, South Korea - Japanese Prime Minister Shinzo Abe (R) speaks at a luncheon hosted for him and his wife Akie (2nd from R) by South Korean Prime Minister Han Myeong Sook in Seoul on Oct. 9. Abe said North Korea's announcement of a nuclear test is ''absolutely unacceptable.'' (Kyodo)

S. Korea's parliamentary election

S. Korea's parliamentary election

SEOUL, South Korea - Han Myeong Sook (R), leader of South Korea's main opposition Democratic United Party, and her husband cast their votes to elect the country's new parliament at a polling station in Seoul on April 11, 2012. The election for a new 300-member National Assembly, South Korea's unicameral legislature, for a four-year term is widely seen as a weathervane of voter sentiment for December's presidential vote. (Kyodo)

S. Korea election

S. Korea election

SEOUL, South Korea - Han Myeong Sook, leader of South Korea's main opposition Democratic United Party, campaigns in Seoul on April 10, 2012, ahead of a general election. (Kyodo)

Election campaign in S. Korea

Election campaign in S. Korea

SEOUL, South Korea - Han Myeong Sook, leader of South Korea's main opposition Democratic United Party, speaks in Seoul on March 29, 2012, during a campaign for the country's general election on April 11. (Kyodo)

Han elected leader of S. Korea opposition party

Han elected leader of S. Korea opposition party

TOKYO, Japan - File photo taken in Seoul on May 3, 2006, shows former South Korean Prime Minister Han Myeong Sook. South Korea's main opposition Democratic United Party on Jan. 15, 2012, elected her as its new leader. (Kyodo)