There is little point running around screaming what might happen (as far as our rights go) until we have evidence that it is happening.
I think non-citizens are guests here and have fewer "rights". It is not unreasonable to be able to hold someone 48 hours that is a non-citizen that is suspected of crime prior to their leaving the country. The previous rule was 24 hours I believe.
(BTW, I'm not screaming, I'm trying to calmly point out that this forum is in danger of turning into the type of statist hypocrites that we bitched about since it was created.)