By PHILIP A. JANQUART BOISE, Idaho (CN) – An Idaho state trooper arrested and searched a 70-year-old Washington man solely because of his license plate from Colorado, where marijuana is legal, the man claims in a federal lawsuit. Darien Roseen lives in Washington and has a second home in Colorado. He was driving east on I-84 the morning of Jan. 25, 2013, and had just crossed the Idaho-Oregon Border, when he passed Idaho State Police Trooper Justin Klitch, who was in the median observing eastbound traffic. “Immediately after Mr. Roseen passed his location, More…