Just some points I though I'd put forward: SIDS?  There is clear reasons why these babies died, and it was not SIDS at all, is it?

Yes, every babies life lost is a tragedy, but I put it to you, 5 babies do not make co-sleeping a conclusive cause.  There are arguments, well put in the opposition that state it is safer to co-sleep with your little ones.  

And the reasons about Asians being OK to co-sleep when Westerners are not.

One, clearly racist! (Westerners heavier/using soft bedding? Come on.) Two, even aware co-sleeping parents/professionals who recommend it state NOT to co-sleep when you are on certain medications/recreational drugs or alcohol (it's simply sensible).  
Three, many American studies are funded by companies who produce cots, clearly biased.

Four, modern as in the last 100-150 years the trend may have been putting babies in nurseries and seperate beds, but look beyond that and the majority people co-slept in many cases, they breastfed etc.  And way beyond that when we were all back to origins we ALL kept our babies close to us.