Authorities use logic in late-night search for Eric Frein; he's now one on FBI's Most Wanted list
Flights were grounded as authorities were pursuing a suspect in a nearby shooting
The test will look at the possibility of the technology's use by agents in the field
The U.S. Senate on Thursday approved the president's plan to arm and train Syrian rebels in the fight to defeat ISIS. The president said the bipartisan vote shows the U.S. is united against ISIS.