Indicators?

April 5

Trying to fashion a shield against a sneak missile attack, military planners gambled on costly projects that flopped, leaving a hole in U.S. homeland defense.
http://graphics.latimes.com/missile-defense/

April 8

Washington (AFP) - The US military command that scans North America's skies for enemy missiles and aircraft plans to move its communications gear to a Cold War-era mountain bunker, officers said.

The shift to the Cheyenne Mountain base in Colorado is designed to safeguard the command's sensitive sensors and servers from a potential electromagnetic pulse (EMP) attack, military officers said.
http://news.yahoo.com/us-aerospace-c...015320113.html

Also April 8

PENTAGON — North Korea has the ability to launch an intercontinental ballistic missile capable of hitting the West Coast of the U.S. with a nuclear weapon from a mobile launcher, according to a Department of Defense intelligence assessment cited by the head of NORAD in a Tuesday press briefing.

Not only does the Pentagon worry that the road mobile weapon — the KN-08 — is able to launch with reduced warning from inside North Korea but also that the current regime has advanced its nuclear weapons technology enough to arm the ICBM with an effective warhead.
http://news.usni.org/2015/04/07/nora...on-mobile-icbm