From a parade down Main Street to fireworks exploding above the Pecos River, Carlsbad kept up the energy for the U.S.’s 250th birthday on July 4. Relive the excitement with photos from Carlsbad Current-Argus reporter Medha Sarin. Parade Patriotic floats drive through the city during the annual parade, July 4 in Carlsbad. A kid U-turns past the Cavern Theatre on July 4. A truck affectionately decked out in red, white, and blue drives through the …