WASHINGTON – The U.S. Department of Homeland Security has advised federal agencies to initiate emergency counterterrorism measures to prevent possible al-Qaida car bombings planned during the last days of the Muslim holiday Ramadan, according to an internal department memo obtained by WorldNetDaily. Citing al-Qaida's "increasingly sophisticated" car-bombing tactics, it recommends security guards tow all vehicles parked illegally in and around government facilities, if their owners cannot be identified, and inspect the undercarriage and other areas of vehicles entering sensitive areas, among other high-threat protective measures.