Is not your privacy also your property?
I don't think that peeking in your letters is at the same level as throwing a stone through your window...
Both are violations. Privacy is valuable because we value privacy, no other reason is needed, but you could do a lot of horrible things to a person if you could just look through their mail without restriction. It's always been a federal crime to do so, and changing that is one giant leap towards a dictatorship, pretty clearly. Wiretapping and intercepting electronic communications (functionally becoming the same thing) has been illegal for the exact same reason, and it's difficult to argue that they're any different - both can provide sensitive information, both can be used to oppress, and both have that 'ick' factor that makes most people that think about it long enough pretty pissed off.
Sliding slope arguments are easy to construct but hard to verify, especially considering that the Netherlands already taps like 5% (if it's not more) of it's population, and you can hardly call it a dictatorship. (well, technicaly you can, since the population is obviously being terrorized by a small group of people who're above the law, but arguing about that is going to turn this into a social flame war if I'm not banned before that for suggestive language. That however doesn't have anything to do with phone taps or the government.)
While it's true that it's possible to cause someone a lot of harm with personal information, it's also possible for doctors to cause a lot of harm by leaking personal information, yet I don't see many of you arguing that we should curb the rights of doctors to collect information. Instead, in their case, people seem to assume that since doctors (and medical specialists who might never even see the person in question, in case you'd want to use that as an argument) practically have to swear an oath not to abuse their knowledge (and they get in a lot of trouble if they break it), they're not going to do it. Same for social workers. What makes wire-tappers different in this respect?
Difference of views I guess. It's just that I can't really see how privacy would be valued over the protection of life and property.
Not really, just scale : let's be serious for one second : how many horrible death are caused by serial killers per years in the US? How many people die everyday from car crash? And so on...
You can't destroy all privacy to stop the serials killers (or rather, you CAN do that, but under very serious scrutiny) I don't see why you gobble the excuse that a few lone terrorist (because we're not speaking about al Quaida there, they are clever enough to encrypt their communications, which is easy as pie by the way) warrant the wiretapping of the whole nation.
If you want to save peoples, you have better things to do.
I'd think organized crime is one of the most important causes of intentional bodily harm and death, especially in large cities where significant parts of the city are essentially owned by mobs or gangs. (to give an example, near the end of last year, a dutch mayor had to go in hiding to avoid being murdered by the local mafia. This being Holland, I can hardly imagine the situation in the US is much better.) Phone taps have been and still are one of the most important tools in the fight against organized crime but I feel the current system is just not suited to fight crime on a scale we're seeing, especially with the drug wars going worldwide. I could hardly care less about terrorists, but I don't think it's a good idea to sit idly under the guise of privacy while the government is slowly being replaced by people who have no qualms about tapping people's heads instead of their phones.