Their lyrics are pointed, specific and reference big political events that happened just days ago. Protest music experts say the responsiveness to the current moment has helped these artists catch fire online but say they'll need to move their message into the real world if they want it to stick. When the U.S. and Israel launched strikes on Iran late last month, songwriter and musician Joseph Terrell says he couldn't get the conflict off his mind. Soon, his thoughts were taking the shape of song lyrics. "I started thinking about that myth we ... [6811 chars]