Twenty years ago, Third Rail Repertory Theatre launched itself onto the Portland theatre scene with a production called “Recent Tragic Events,” set just after the attacks of 9/11. That play, written by Craig Wright, put Third Rail Rep on the map, winning a number of local theatre honors. While many theatres have come and gone in that time, Third Rail is among those that were able to survive the pandemic and other economic pressures. It’s celebrating 20 years by reprising that first show, “Recent Tragic Events.” We talk with director Scott Yarbrough, who was also the company’s founding artistic director, about how the play resonates today.