Terror Plotting against NYC Subways

Nothing new, but a new warning was issued last night regarding terror plots against NYC subways (Feds warn of terror plotting against NYC subways); It did get me thinking though, as discussed below, Mass Transit is at the center of 3 contemporary themes, and yet still continues to be relegated to an ancillary issue:

• Economic benefits
• Environmental benefits
• Terror concerns

What other issues of the day are more poignant than these?