Californians intrigued by the arrival of the caravan in Tijuana "We came here a few months ago, and we wanted to see what had changed" says Zac Madewell as he takes pictures of the security fence that has been reinforced, just a few metres from the border with Mexico on the US side. While everything seems calm, Californians are watching for signs of the migrant caravan that has begun to arrive in Tijuana, and American migrant aid associations are following the situation closely. IMAGES AND SOUNDBITES