News #2 Bush's Border Fence Faces More Trouble

I haven't heard about this before, since I'm not american. And i have a hard time to imagine a fence along the countrys border. So I don't have really have an opinion. But I think it sounds very expensive. And I also don't get it. Is the fence supposed to stop terrorists? Because I don't think that a fence would stop them. Perhaps it would stop regular people from getting in to the United States but not terrorists, because I think they are planning their attacks so carefully that a fence wouldn't stop them from doing what they want. So I'm not sure if the Bush administration should get their money to complete the fence.