Indeed, declines among energy and raw materials producers overshadowed the news from Abbottabad. Producers of energy and raw materials led declines among industry groups in the S&P 500. And mergers and other corporate news -- from the $3.4-billion Arch Coal cash deal for International Coal Group, to the patent-infringement settlement between Dish Network and Echo-Star Corp. over TiVo technology -- all had their own impacts on trading.

There were, however, some peculiar wrinkles in the technology world worth noting.

One had to do with to crushing news -- a vulnerability that could impact more and more companies dependent on online sales and cloud-based systems.

Then, there was related to the sudden interest in this news event.