“Sources say UPS planes in Newark, New Jersey and Queens have also been isolated.”
http://philadelphia.cbslocal.com/2010/10/29/breaking-suspicious-package-aboard-ups-plane/
I bet any flight arriving from Europe or Middle East will be isolated.
Oh crap.
Fox news is reporting that 5 packages are now suspect and the UPS building at PHL is now evacuated and there also an issue at EWR