Here's what I found on Custom Ink's website in their User Agreement section...(this is just two paragraphs pulled from the whole section)...Looks like they may want to brush up on their own policies,however, this in no way excuses the actions of those who designed the shirts. Looks like there was a lot of 'stupid' to go around on this one...
"Additionally, CustomInk.com has the sole discretion to reject any order that it considers libelous, defamatory, obscene, profane (according to standards established by the FCC), portraying irresponsible use of alcohol or other substances, advocating persecution based on gender, age, race, religion, disability or national origin, containing explicit sexual content or is otherwise inappropriate for CustomInk.com production."
"You agree to not use CustomInk.com's Service to create any material that is unlawful, harmful, threatening, abusive, harassing, tortuous, defamatory, vulgar, obscene, libelous, invasive of another's privacy, hateful, or racially, ethnically or otherwise objectionable, or that infringes on any patent, trademark, trade secret, copyright or other proprietary rights of any third party."