I just received the following email from the US Embassy in Israel. I figure it is improtant to publicize in case their are any American journalists reading this who might not have received the notice...

Warden Message The following message was sent today from the U.S. Consulate in Jerusalem:
The U.S. Consulate has received information that groups in the West Bank have plans to kidnap an American journalist in the West Bank and are actively looking for a target and an opportunity to do so. We urge all American journalists or foreign journalists associated with American media outlets to exercise additional caution when traveling in the West Bank.
Our concerns about travel to Gaza continue and we encourage journalists to avoid travel to Gaza. For the latest security information, Americans should regularly monitor the Department's web site at http://travel.state.gov, where the current Worldwide Caution Public Announcement, Middle East and North Africa Public Announcement, Travel Warnings and other Public Announcements can be found. Up-to-date information on security can also be obtained by calling 1-888-407-4747 toll free in the U.S., or, for callers outside the U.S. and Canada, regular toll line at 1-202-501-4444. These numbers are available from 8:00 a.m. to 8:00 p.m. Eastern Time, Monday through Friday (except U.S. federal holidays.)
Americans who remain in West Bank and the Gaza Strip are strongly encouraged to register with the Consular Section of the U.S. Consulate General in Jerusalem through the State Department's travel registration website, https://travelregistration.state.gov.
U.S. citizens who require emergency services may telephone the Consulate General in Jerusalem at (972) (2) 622-7250.