Get arrested. No. But a dry run, maybe. Yes.
I wouldn’t put anything past these people.
...returned to the U.S. in February after spending a number of months in Pakistan, where he traveled after becoming a naturalized American in April 2009.,,,
A Pakistani government source, speaking on condition of anonymity, told TIME on Tuesday that the suspect had ties with militants while in Pakistan.
“He was here at a training camp,” the source said.
The source also claimed that members of Shahzad’s family were arrested in Karachi on Tuesday morning.
http://www.time.com/time/world/article/0,8599,1986885,00.html