doctrine permits the government to collect a great deal of information about Americans with limited constitutional constraints … conventional response has been to suggest various modifications to the existing information-collection rules. Data collection …, however, is only one part of the problem. The government's post-collection use of information alone can — and often does …

path of short rates. The latter shocks matter, in part, because of the reduction in interest-rate volatility associated …

more entry into the market for these stocks and, consequently, more information collection. The analysis also accords with …