Don't get smug? Who's attacking "liberals." Many democrats have differing views, some conservative, some liberal, some neoconservative. Asking someone to express their view is not attacking them. Don't get defensive.
As to the data, you can probably find data for and against the thesis, which has come to make sociology rather baseless. There are lies, damned lies, and statistics, and the data has become so twisted with political rhetoric and we, or at least I, quit listening to it at all for a while.
As to the data, here is one conclusion I found:
This article began by posing the complex question of why the crime problem has come to
occupy a more conspicuous position in the context of the general political debate. It has been
pointed out that actual crime trends constitute a misleading, or at least an insufficient,
explanation. In conclusion, therefore, an explanatory model is proposed which proceeds from
the dynamics of the politics involved, via the connection between policy and the societal
transformation witnessed over recent decades. In highly simplified terms, following the
Second World War, politicians were given a clear mandate to distribute the wealth created by
the market economy in a reasonably equitable fashion. As the development of the global
economy made the formulation of national economic policy more difficult, a divide opened
up between the policy expected by the electorate and that which it was possible to implement
(Habermas 1984; Bauman 1998; Young 1999). In this context, crime came to fill an important
function in the neo-liberal critique of the welfare state (Hall et al. 1978; Tham 1995; Beckett
1997). The view that it is the individual who determines whether he will succeed or fail is
important here. One of the cornerstones of the neo-liberal argument against the welfare state
is that one should not be able to blame society for one’s own shortcomings (Boréus 1997).
The critique argues that the welfare society produces individuals with no incentive to raise
themselves up out of poverty. The social conditions which constitute the breeding ground for
criminality have thus increasingly come to be regarded as excuses and evasions. Instead of
understanding crime as a social problem requiring reforms which improve the living
conditions of the most disadvantaged groups in society, the blame is placed firmly at the door
of the individual. The state should therefore focus on law and order rather than “wasting
money on expensive welfare programmes.” The former president of the USA, Ronald Reagan,
expressed this in the following terms in a 1983 speech: "Here in the richest nation in the
world, where more crime is committed than in any other nation, we are told that the answer
to this problem is to reduce our poverty. This isn’t the answer/ …/ Government’s function is
to protect society from the criminal, not the other way around" (cited in Beckett 1997:48). In
Sweden, conservatives were the first to exploit the problem of “rising crime” in this way.
Thereafter, first liberals and then social democrats have adapted or modified their position in
this same direction.
http://www.crim.su.se/pdf/Artiklar/2004a_EstradaF_a.pdf (pdf)
And there is plenty of data indicating fear of crimes is not based on a rise in crime. Do I think the swing to the right is partly this? Sure, along with the swing to the right on "medical police" etc., but maybe a swing to the right is a good thing. I'm not convinced, so if you or anyone else wants to convince me, give it your best shot. It will, however, be very difficult to convince me all this hasn't led up to BushCo's near flushing of the Constitution. I think BushCo misunderstood the people and thought he could get away with a lot more than he could. In short, the country isn't THAT far to the right. The recent survey on crime and prisons supports that.