Mr. Hayden said the board had chosen Mr. Mills in part because he had expressed a willingness to intervene aggressively in failing schools.

As the news conference was being held, the Bundesbank began to intervene aggressively in the European markets, selling off dollars, traders said.

In the 1980's Libya was aggressively intervening abroad, trying to acquire weapons of mass destruction, losing air battles with American warplanes and dabbling in terrorism.

But this speech, which is one of three he will give to elaborate on themes he first introduced on Labor Day, calls on private businesses to intervene aggressively.

Nasser was idolized by the Arab masses and aggressively intervened abroad.

The dollar's slight movement typifies the activity that has characterized the foreign exchange markets since the central banks intervened aggressively to support it during the first week of the year.

The Japanese government, by intervening aggressively in the market, has kept the yen closely aligned with the dollar since the beginning of the year.

Some traders said they were being especially cautious about selling the dollar because they were afraid that central bankers might aggressively intervene in the market.

The Federal Government has to intervene quickly and aggressively.

He intervened aggressively in the economy, taking the nation off the gold standard and (for a while) imposing price and wage controls.