You are right.
From the article:
“Dawud Walid, executive director of the Michigan chapter of the Council of American-Islamic Relations, urged caution.
“I hope that our government is not criminalizing people if they travel and have cooking items just because they are Muslim or come from the Muslim world,” Walid said. “I don’t think someone flying with an empty pressure cooker elevates to a level of terrorism unless the government has some other sound information.”
From The Detroit News: http://www.detroitnews.com/article/20130513/METRO01/305130415#ixzz2TDmnct8z