Now to anger surrounding the long delayed opening of the 9/11 memorial museum. Some victims' families are outraged about the admission price and gift shop at a museum housing human remains. ABC's gio... See More
Now to anger surrounding the long delayed opening of the 9/11 memorial museum. Some victims' families are outraged about the admission price and gift shop at a museum housing human remains. ABC's gio Benitez is there at ground zero. Good morning, gio. Reporter: Good morning, robin. Those remains are in a private room underground but in the same building as that gift shop and so this morning some of the families tell me they are furious. This morning, the 9/11 memorial museum set to open to the public this Friday is at the center of an intense debate. Some 9/11 families pointing to the pricey coffee mugs, t-shirts, key chains and stuffed animals sold in the gift shop inside. And they're upset about the museum's $24 entrance fee. Why? Because the museum also houses some 8,000 unidentified human remains from those terrorist attacks. So as long as that sort of tomb of the unknowns is there, you're not going to walk in. No, I'm not going to walk in. Reporter: Jim lost his 29-year-old son, a firefighter in the 9/11 attacks. It took more than six months to find some of his son's remains, the rest, he believes are unidentified and in that repository. My son's friend will have to pay $24 to go down to pay their respects. I think that's a disgrace. Only cemetery in the world you have to pay a fee to get in. Reporter: Another family are appalled by greed and commercialism. I wouldn't expect such an intrusion at Arlington cemetery or at the Pentagon memorial or at any cemetery. Take the remains out of the museum and then I think there will be less opposition to the selling of the trinkets and the hats and shirts. Reporter: In a statement they tell us "The museum receives no government funding and relies on private fund raising, gracious donations and revenue from ticketing and care Phil selected keepsake items for retail." My son's helmet was crushed. Let's never let it happen again. Reporter: By the way, a lot of these items have been on sale for years here at an official gift shop at the memorial. The difference, the families say, is that now they are so close to those human remains. Rob and George. You can understand the families' emotion.
This transcript has been automatically generated and may not be 100% accurate.