U.S. stock futures declined Thursday and global stocks were lower as investors adopted a cautious stance ahead of the release of the Mueller report into allegations of Russian election and news of renewed weapons tests by North Korea that threatened to unravel Donald Trump's broader Asia strategy on trade and security. Contracts tied to the Dow Jones Industrial Average fell 70 points, futures for the S&P 500 declined 5.15 points, and Nasdaq futures were down 14.75 points. North Korea's state media said officials had conducted a "tactical" weapons systems test, the first since Trump and Kim Jong Un met in Hanoi earlier this year, although it didn't appear to be a long-range missile capable of carrying a nuclear warhead.