The political fund scandal involving Nishimatsu Construction Co. has brought to light once again the unhealthy relationship between politics and money. This time, prosecutors went straight to the top by arresting the chief secretary of Ichiro Ozawa, president of the Democratic Party of Japan.

But the scandal over the allegedly dirty money from Nishimatsu hasn't stopped there. Big names have surfaced within the Liberal Democratic Party as well — including Toshihiro Nikai, the minister of economy, trade and industry, former Prime Minister Yoshiro Mori and ex-Finance Minister Koji Omi. Prosecutors, however, have yet to arrest anyone from the LDP side.

The Nishimatsu scandal has spurred some politicians, Ozawa among them, to call for a complete ban on corporate campaign contributions through a revision of the Political Funds Control Law.