The changes, effective today, will help counter a threat like no other our Nation has ever faced. . . .
We're dealing with terrorists who operate by highly sophisticated methods and technologies, some of which were not even available when our existing laws were written. The bill before me takes account of the new realities and dangers posed by modern terrorists. It will help law enforcement to identify, to dismantle, to disrupt, and to punish terrorists before they strike. . . .
Surveillance of communications is another essential tool to pursue and stop terrorists. The existing law was written in the era of rotary telephones. This new law I sign today will allow surveillance of all communications used by terrorists, including e-mails, the Internet, and cell phones. As of today, we'll be able to better meet the technological challenges posed by this proliferation of communications technology. . .
In his radio address the following week, this is what the President said about the changes to FISA:
The bill I signed yesterday gives intelligence and law enforcement officials additional tools they need to hunt and capture and punish terrorists. Our enemies operate by highly sophisticated methods and technologies, using the latest means of communication and the new weapon of bioterrorism.
When earlier laws were written, some of these methods did not even exist. The new law recognizes the realities and dangers posed by the modern terrorist. It will help us to prosecute terrorist organizations -- and also to detect them before they strike. . . .
Surveillance of communications is another essential method of law enforcement. But for a long time, we have been working under laws written in the era of rotary telephones. Under the new law, officials may conduct court-ordered surveillance of all modern forms of communication used by terrorists.
George Bush justified the sweeping expansion of FISA back in October of 2001 by insisting that the changes allowed full-scale surveillance of all modern means of communications -- including email and cell phones.
http://www.salon.com/opinion/greenwald/2007/05/21/fisa_changes/index.html