Journalists, government watchdogs, and a curious public can track who's been visiting 1600 Pennsylvania Ave. now that the White House visitor logs are available. More than 1.9 million visitor records have been released over the past two years. They can be viewed from a browser or downloaded as raw data for analysis. The records include name of visitor, date and time of visit, meeting location, and person visited. Only meetings with national security implications or those that are "necessarily confidential" are omitted from the listing.