Apparently it has a toxic substance in it. You can read more about it here.
http://www.change.org/petitions/tide-get-cancer-causing-chemicals-out-of-laundry-detergent#

I find it interesting that the author of that article doesn't link back to her source. Without that, it feels more like hearsay. I'll keep an eye out though.

Ditto what Kim said!

P&G have their product ingredients here:
http://www.pgproductsafety.com/productsafety/search_results.php?searchtext=Tide&category=msds&submit=Search

I checked a couple of the ones listed as "free" and did not see any dioxins listed , but did not check every listing and it is possible that they are not disclosing everything. If the legislation allows that, it is just another way big business is in bed with the gov't.

I think this is the original source? http://www.womensvoices.org/science/reports/dirty-secrets/

You have to click "download the full report" at the bottom of the article to get a pdf to see the testing methodology and full results.

She mentions her source. Here's the link to it: http://www.womensvoices.org/science/fact-sheets/dirty-secrets/

Oops saw that Christine already posted this.. Thanks Christine!

What about All Free and Clear Liquid Detergent?

That's what we use most often...All Free & Clear.