How safe is the metro system? Especially at night?

Haha! I thought you meant Metro Safety, as in the Safety Division at WMATA. I'm dealing with those guys on a project right now and they are mostly grade A, over-zealous safety nazis.

To answer you're question though: I ride the metro rails at night all the time and I don't really feel too uncomfortable. Then again, I'm a 6'4" 215 lb white guy and look like I know how to handle myself well enough. I do try to avoid talking to most of the people I see on the train though. I never ride the buses, so I can't really speak about them.

So I haven't had any issues as of yet, but someone I know was robbed last night At knife point at our stop. I really only metro to and from work from VA to DC. I know I can carry an expandable baton in DC, but pretty sure it's no allowed in the Cannon/Longworth/Rayburn HOB's. How can I carry a baton to and from work, even without taking the baton into the building? I get off work at 6pm every day, so I sort of want to arm myself, and Id like to keep/store my asp somewhere during the work day. And ideas? Banks close at 5, so no deposit box.

If you're authorized to carry the baton in DC then just give it to the USCP Officer running the scanner.  They have lock boxes in all the buildings.

Depends on which area's you are traveling past/ stopping at

At night.....

Green / Yellow line in DC is not good

Blue/Orange line past Smithsonian  going east into PG county are not good

Red line  overall is fine the whole way.

Rule of thumb : Basically any line that goes into DC and moves east is questionable.