 The US Department justice sues Google and seeks divestiture of Google ad manager suite including Googles ad exchange. The suit comes over alleged abuse of domination of online ad market.Google dominates the digital advertising market.US stocks are marginally lower:Dow Industrial Average is down -8.6 points or -0.02 at 33621.50SP index is down -8.4 points or -0.23 at 4011.10NASDAQ index is down -27.71 points or -0.24 at 11336.46Aft... 