IETF struggles with what to do about Kaminsky bug

A serious flaw in DNS was discovered over the summer, the so-called Kaminsky bug. But the question of what to do about it, for the IETF, isn’t as simple as “fix it.” Some members want to do that – but others claim that the fix is already out there. The hard part is getting everyone to implement it. Carolyn Duffy Marsan explains.