UDP and data retention

[Eugen Leitl]

On Fri, Dec 19, 2008 at 08:23:40AM -0500, phobos at rootme.org wrote:
> On Fri, Dec 19, 2008 at 11:24:01AM +0100, eugen at leitl.org wrote 0.1K bytes in 3 lines about:
> : 
> : This is off-topic, but isn't UDP making data retention more difficult
> : than TCP/IP.
> 
> How would UDP make data retention more difficult?

That was posed as a question, but I accidently dropped the question mark.

The idea is that UDP is a connectionless protocol, while the bulk of
off-shelf lawful interception software and intent behind the data
retention legislation as well as ISP-side financial investment into 
interception infrastructure will be initially mostly focused on HTTP, SMTP,
POP3 and its ilk. This might open up a loophole which could take
several years to close.

That's the hypothesis. What do you think?