PARIS (AP) - France has declared war on al-Qaida, and matched its fighting words with a first attack on a base camp of the terror network's North African branch, after the terror network killed a French aid worker it took hostage in April. The declaration and attack marked a shift in strategy for France, usually discrete about its behind-the-scenes battle against terrorism. "We are at war with al-Qaida," Prime Minister Francois Fillon said Tuesday, a day after President Nicolas Sarkozy announced the death of 78-year-old hostage Michel Germaneau. The humanitarian worker had been abducted April 20 or 22 in Niger...