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more on Emergency text messages and AB 2231
From: David Farber <dave () farber net>
Date: Sun, 2 Apr 2006 20:21:58 -0400
BTW does anyone in the US cellular industry use cell broadcasts? Begin forwarded message: From: Lauren Weinstein <lauren () vortex com> Date: April 2, 2006 8:15:41 PM EDT To: Craig Partridge <craig () aland bbn com>Cc: Lauren Weinstein <lauren () vortex com>, "(Mr) Lyn R Kennedy" <lrkn () earthlink net>, dave () farber net
Subject: Re: [IP] more on Emergency text messages and AB 2231 Craig, I am unconvinced that text messaging, as currently implemented, is a good choice for mass "non-opt-in" emergency notifications, for both the technical and "human factors" reasons that have been discussed on IP. Technical issues can of course be dealt with through sufficient work and possibly expense. Human nature is another matter. I don't believe that it's practical to "educate" people to use the current generations of text messaging if they are uninterested in that feature. I've personally tried such educational efforts myself with various folks, only to be told "Lauren, I only want to use the phone to call my sister Back East [free long distance!], I don't care about all this other fancy stuff..." -- and other similar retorts. Text messaging simply does not "exist" for a vast number of cell phone users. The only scenario under which I can envision really acceptable text messaging for emergency notifications would require several prerequisites: - a cellular infrastructure that could successfully deliver vast numbers of SMS messages to a region in a very short period of time without swamping the network [most likely doable with work] - a cellular infrastructure that would not be swamped by the vast number of voice calls that people *will* make immediately in response to those emergency text messages [*much* harder to accomplish] - some sort of separate "channel" and relatively standardized user interface for dealing with the emergency messages [likely doable, but would require considerable work and cooperation] The last point has a couple of issues. Standard text messaging has virtually nil security from most carriers, and I suspect that soon after the announcement of emergency text messaging being implemented, we'd have people spoofing emergency SMS messages (SMS spam is already a problem) just for kicks -- there are lots of sickos out there. There's no obvious way for an ordinary user to easily authenticate the sender of standard SMS messages. Any emergency messages should really appear *outside* of the standard interface, in a mode that couldn't be spoofed through ordinary SMS messages, and that would be automatically displayed (e.g., in large red text) without any specific actions being required by the user to either access the message or clear the phone for immediate voice calls. So in this respect, I'm really talking about what would virtually be a separate communications and display channel, even though it might be based on some aspects of an "enhanced" SMS system. Bottom line: Standard SMS text messaging does not appear to be suitable for this task. An enhanced environment that might be more practical for this purpose is possible, but won't be trivial. --Lauren-- Lauren Weinstein lauren () vortex com or lauren () pfir org Tel: +1 (818) 225-2800 http://www.pfir.org/lauren Co-Founder, PFIR - People For Internet Responsibility - http://www.pfir.org Co-Founder, IOIC - International Open Internet Coalition - http://www.ioic.net Moderator, PRIVACY Forum - http://www.vortex.com Member, ACM Committee on Computers and Public Policy Lauren's Blog: http://lauren.vortex.com DayThink: http://daythink.vortex.com - - -
Hi Lauren: I remember your earlier note and agree that's an issue. At the same time, I also wonder how we go forward. If we agree that text messaging makes better use of the limited cellular capacity (and you're quite right about how small it is) in an emergency, what might we do. Do we recommend, for instance, that TV broadcasters take a few minutes in their live "breaking news coverage" to explainhow to use SMS -- just as they currently make announcements saying "don'tcall people in the affected area"? Do we educate people in advance(much as in California, people are told to find a contact person elsewhere in the US to call to say, I'm OK and who will rebroadcast the info elsewhere?).The technical world doesn't stand still. On 9/11 most folks preferred to get their news from TV, but as many were in the office, they apparentlywent to on-line news sites first (shifting to TV as they got home).Maybe next time they go to the web first? Similarly, how do we educatefolks who have cell phones to use them effectively? (And, what is it reasonable to ask them to learn???). Thanks! Craig
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