So Israel spies on Lebanon. What is new about that? Israel engages in all forms of intelligence operations. This includes sigint and comint as well as photoint. All Hisbollah has 'proven' is that Israel was watching Harriri in the days before his murder. What Hisbollah has not shown is WHY Israel was watching Harriri's movements. Hisbollah wants folks to draw the conclusion that Israel was watching him so it could whack him. A far more probable motive is that Israel may have intercepted communications indicating a hit was possible.
ISIS kills 22 in Yemen's Sanaa, Aden; targets both gov't and Houthi rebels (Reuters)