Sure, I figured this was a privacy issue, but I think as a group Librarians are proving to be some of the fiercest advocates of user privacy. I am surprised to hear that they just 'allow' the police access in your area...without a warrant for a specfic person based on other reasonably suspicious activity. Possibly I am just naive...here is one such policy. Hopefully the person you spoke with was misinformed/jumped to some conclusions (?)
http://www.kcll.org/aboutus/generalinformation/policies/patronrecords.html"5.1 Staff should immediately ask for identification if they are approached by an agent or officer. Staff should then immediately refer the agent or officer to the library director, or in the absence of the director, to the library�s legal counsel.
5.2 The library director should meet with the agent or officer with the library�s legal counsel or another colleague in attendance.
5.3 If the agent or officer does not have a court order as described in paragraph 3.1 above compelling the production of records, the library director should explain the library�s confidentiality policy and the Washington confidentiality of library records provision at RCW 42.17.310 (1) (l) and inform the agent or officer that the user�s records are not available except when a proper judicial order from a court of competent jurisdiction has been properly served on the library."
Outside of this, I feel basically safe since my reading list is pretty boring
