I can speak to that. As I mentioned, I think the default currently is 75 years for information retained by the U.S. government. I think that does raise privacy concerns when travel histories and travel information of individuals is retained for such a long period of time. Certainly it then becomes open and available in a way that information would never previously have been available to law enforcement or any other agencies. These have privacy concerns, and I don't think that the idea of limiting retention beyond the current default of 75 years wouldn't adequately outweigh law enforcement concerns. I think the overarching concern that groups such as the CCLA and the ACLU have is that this long-term retention of biographical information and all kinds of data represents a database that is vulnerable to both dissemination and use, and that really its existence can lead to privacy harms.
On October 24th, 2017. See this statement in context.