What to Do about I.D. Cards?

I wrote to my MP (Ivan Lewis) today.

Mr. Lewis,

Just to let you know, I will vote Labour in the local elections and
the general elections\.But I am going to vote Lib Dem in the European
elections *on the issue of ID* cards alone .Chris Huhne is quite
right: the state is a collective enterprise to which we subscribe - it
is not an entity that owns us. Do Labour members not read J.S.Mill
On Liberty?