Krueger on Disability Insurance and Social Security Privatization

The prominent economist Alan Krueger has this "Economic Scene" column in today's New York Times. The column begins:

DISABILITY insurance could be the Achilles' heel of President Bush's efforts to carve personal accounts out of Social Security (although there is a lot of competition for that distinction). The program faces challenges that are at least as daunting as those on the retirement side of Social Security, and fitting the existing program into a system of personal accounts could have serious unintended consequences.