"I'm going to submit a budget to Congress next month which will include spending of $30 billion for homeland security, that's more than $30 billion — almost three times the amount that we were spending prior to Sept. 11, 2001," Mr. Bush told an audience at the New Mexico Military Institute in Roswell.

Specifics of Mr. Bush's proposals were not immediately available, and it is possible that they are still being worked on in the White House. But he said he envisioned an increase of almost 10 percent on homeland security throughout the government.

"We understand our obligation in Washington," Mr. Bush said. "Our obligation is never to forget what happened on September the 11th. And our obligation is to support the homeland security people, those on the front lines, to prepare for a potential threat."

The president used those remarks to call for Congressional renewal of legislation, passed soon after the terror attacks of Sept. 11, 2001, that broadens law enforcement's surveillance powers and makes it easier for the Federal Bureau of Investigation and the Central Intelligence Agency to share information.

Critics of the legislation, called the Patriot Act by its supporters, have expressed fears that it could erode civil liberties, and that information-sharing by the C.I.A. and F.B.I.