Complex sentence: However, following the 9/11 attacks, C-SPAN management determined that the network needed to focus on events related to the attacks, and the subsequent programs were put on hold until March of 2002.
Split into simpler sentences: However, following the 9/11 attacks, C-SPAN management determined that the network needed to focus on events related to the attacks. So, the subsequent programs were put on hold until March of 2002.