No, it is simple mathematics exposing unrealistic expectations. You want a sonar that can spot a man in the water, you are going to have to go to hi freq, and if you want hi freq you are going to have to settle for less range. As a military sonar on a ship is so powerful that it will kill fish near the transducer, you are going to have to put up with a hell of a lot of dead fish if you make a sonar line from one end of the continent to the other.
Your expectations are simply unrealistic, and to say Bush is ignoring a clearly scientific impossiblility is not against him, it is for him.
Get real here, nobody is gonna make you safe in bed on the cheap. You want freedom, you will have to fight for it. Try living in Israel sometime. With 100% conscription, and the highest technology available to man, Islamokazi's get in once and a while. The longer you duck and cover, the greater chance you get to buy it. If you want to survive and be in peace and safety, WIN the WAR. Don't demand 'someone' do 'something' about it. Kerry will promise you the moon for power over you. Do you think he can deliver?
Hah! 10,000 miles of coast line, and 8,000 miles of border, how are you going to make that impassable?
Dang, with all the FBI in the US looking after that one guy in the woods for years, and they even knew the woods he was in? Multiply that guy by 1000, and divide the FBI by 1000 and add in 100,000 times the area.
Or do you honestly believe that the nation that put a man on the moon, split the atom and developed the Internet cannot control its own borders?
Do you at this point honestly think it can to your standards?