http://www.business.ku.edu/_pdf/CAE_KansasPerspective.pdf

AN EMBARRASSING METRIC DISAPPEARS: “The IRS and the U.S. Census Bureau (which provides technical support in reporting tax migration data) have not made an official announcement as to why the program is being discontinued. So we are left to speculate why such vital economic statistics suddenly got canceled. . . . The very idea of people voting with their feet is uncomfortable to some politicians.”
Hayek: “Everything which might cause doubt about the wisdom of the government or create discontent will be kept from the people. The basis of unfavorable comparisons with elsewhere, the knowledge of possible alternatives to the course actually taken, information which might suggest failure on the part of the government to live up to its promises or to take advantage of opportunities to improve conditions–all will be suppressed. There is consequently no field where the systematic control of information will not be practiced and uniformity of views not enforced.”