It will be standing room only on the Capitol grounds -- the Secret Service says no lawn chairs, nor umbrellas or signs will be allowed -- and the lengthy list of banned items includes aerosol spray, air horns, coolers, glass, hand tools, laser pointers, pepper spray, strollers, and thermoses.

CNN: Inauguration brings different kind of gridlock to D.C.

Psychology experts say that while the signs vary depending on the nature of the "secret life, " there are clear markers to look for in a loved one who might be harboring violent or harmful tendencies.

CNN: How could the Boston suspect's wife not know?

Separately Friday, there were signs of progress from a House bipartisan group that's been meeting in secret to write an immigration bill.

WSJ: Business, labor still at odds on temporary workers

You watch the guards giving their signs to each other, then you have to copy it in a funny and surreal secret-handshake dance-off.

CNN: Game review: 'The Bouncer'

We are making our way towards our secret destination - we are never told where we are going until we have almost arrived, but the road signs are sometimes a give-away to an eagle-eyed journalist.

BBC: Labouring on the road