It would be slightly more accurate to say that a very small percentage of rechargeable Li-Ion batteries were improperly designed, such that they had a risk of self-shorting. The vast majority of Li-Ion batteries should be incapable of setting themselves on fire under normal operating conditions.
What really annoyed me about that article were all the key details it so carefully omitted. It's like the author was going out of her way to paint it as though Apple, and ONLY Apple, doesn't care if they set your children on fire. Of course the risk of battery fires isn't unique to Apple: it applies to every company that uses Li-Ion batteries in their products, but then the article doesn't mention that. Many of the Li-Ion battery fires to date have been caused by counterfeit or grey-market batteries, and there are some easy things you can do to protect yourself from this possibility, but then the article doesn't mention that. Apple is required by law to notify the CPSC of any reported incident of one of their products catching fire, lest they find themselves facing enormous (multibillion) liability, and with the fifteen incidents reported so far (versus the 175 million iPods "in the wild"), the risk of any given iPod catching fire is orders of magnitude less likely than your chance of dying from a lightning strike, but then the article doesn't mention that. At one point in the past, Apple DID identify a risk of battery fires (with the first-gen Nanos), and they voluntarily issued a recall and press releases (and that MOST of the fifteen iPod fires were first-gen Nanos affected by the voluntary recall), but OF COURSE the article doesn't mention that, because it utterly destroys her stupid fucking argument.
I think my favorite part of the article was this, though.
Of all the people interviewed for Clancy’s report, including three consumer safety experts, all of them agree that the public should at least be aware of this potential problem, no matter how rare the cases might be.
So this stupid, stupid, STUPID fucking idiot actually tracked down three people who knew what the fuck they were talking about, interviewed them, and then the only mention she gives of them is some sorry-ass blurb about "consumers need to know." Probably because the only OTHER thing the three of them said to her is that she's a fucking idiot, and that she could make TV news smarter and better simply by not participating in it.