In a significant development, the FBI has apprehended a suspect linked to the 2021 D.C. pipe bomb case, according to sources familiar with the matter. The arrest marks a crucial breakthrough in the investigation that has gripped the nation since the incident occurred. The suspect's identity and details surrounding the arrest have not been disclosed yet, but authorities are expected to provide more information soon. The pipe bomb incident, which occurred near the Republican and Democratic national committee headquarters in Washington, D.C., had raised concerns about political violence and security in the capital.