At any rate:
The fear-mongering of Bush, combined with the hysterical cries of the "secure the border" crowd led to new restrictions. Of course, contrary to what the hysterics says, these restrictions actually restrict Americans not terrorists or would-be gardeners and day laborers.
The war on terror was a fraud from the start, it was always a war on Americans. Every measure that was passed was used, first and foremost, against Americans not against potential threats to the country. All the new spying on bank accounts isn't being used to crack down on drug cartels or international terrorists but on Americans who have funds overseas, where the greedy hands of politicians have a harder time grabbing them.
To "secure our borders" the government also imposed new rules on how Americans are allowed to travel. Of course, it wasn't Americans who flew the planes on 9/11 but Muslim terrorists, all of whom had official permission to enter the U.S. To protect you from the people they let in they restrict your movement.
Perhaps you don't think these new regulations and controls of Americans actually restricts movement. The data is in and it proves that it does. In 1972 Canada started keeping track of how many Americans visit that country. In the last five years the numbers have dropped in half....
Any economist will tell you that when you drive up the cost of something the demand goes down. Cost doesn't just mean how much money you pay. It also means how much hassle you have to go through to secure something, and what you have to give up in order to obtain it. Forcing Americans, who are visiting Canada for a shopping trip, to carry as passport meant that the number of visitors dropped. Passports aren't free, there is a great deal of hassle, more than ever actually, in order to get government permission to travel. That is what a passport is, it is government permission for you to travel. Something that was once consider a right of all free people is now considered a privilege which governments can dole out, and withhold, at will.
The world is a poorer place because of the morons in Homeland Security. They have trapped millions of Americans within the United States and they have discourage many millions more from visiting the U.S. Airlines are now avoiding connecting flights in the U.S. because the travel Gestapo mistreats and abuses visitors to our country. So, these measures are now keeping Americans from traveling abroad and keeping foreign visitors from coming here. Hundreds of millions of dollars of profits, both here and abroad, have been destroyed by this heavy-handed government intrusion. Government is the great wealth destroyer.