What's that Ben Franklin quote?

"They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety." --Benjamin Franklin

I've been scanning the headlines about the shooting at the theatre in Aurora, CO, today and was horrified* when I came across this lady's quote:

“Americans have yet to understand the threats to their safety, and regard security as an intrusion into their privacy,” says Rachel Ehrenfeld, director of the American Center for Democracy, a New York-based research group.

“In Israel,” she says via e-mail, “well-trained security personnel monitor the entrance to every public building, even supermarkets, and public awareness has stopped many terror attacks and saved many lives.”

Here's my response to that:

1. I understand the threats and accept that those threats are part of the risk associated with living in a free country.
2. Security measures are an intrusion into my privacy. The Fourth Amendment guards against unreasonable searches and seizures, and requires that any warrant has to come from a judge and be supported by probable cause. It's part of due process. We should tread lightly when stomping all over the Constitution under the guise of making us "safer".
3. If I wanted to live in Israel, where every public entrance is monitored, I would move there. 
4. You can obtain public awareness without monitoring the movements of every person entering a public building.†
5. But most importantly, you cannot prevent every tragedy. I do not blame the theatre for this act of violence. I do not blame the crowd for not noticing there was a person wanting to do harm. I do not blame Hollywood for making a Batman film. It was awful. It happened. There will be future tragedies. We must not let our fear override our common sense.

*I was more horrified about the shooting.

†How many well-trained personnel would it take to monitor every public building in the United States?