The Mass today, the largest public event of the Pope's four-nation Latin American tour, went without incident.

Aware of such concerns, Attorney General John Ashcroft began a four-nation tour of Europe today to bolster cooperation and reassure Washington's allies.

But the President's aides insist that the four-nation tour is good politics and good diplomacy.

President Violeta Barrios de Chamorro of Nicaragua ended a four-nation tour today by announcing that Germany had promised her Government $65 million in new aid.

But in January, the Pope answered doubts about his physical condition with a grueling 11-day, four-nation tour of Asia and Australia.

Ms. Rice, who is beginning a four-nation tour of Asia, and Li Zhaoxing, the Chinese foreign minister, plan to announce the agreement on Sunday morning.

President Pervez Musharraf, who was in Paris today completing a four-nation tour that included a visit to Camp David, Md., vowed to pursue extremists.

He arrived in Bolivia for a five-day visit,the longest stop on his four-nation tour of Latin America.

Ahmadinejad arrived in Venezuela yesterday to kick off a four-nation tour to push investment projects such as a hydro- electric power plant in Ecuador.

It accused Prime Minister Benjamin Netanyahu of achieving nothing during his four-nation European tour.