* SEC convenes roundtable following Knight error * Executives broadly support concept of kill switches By Sarah N. Lynch...

* Dormant software caused problem * SEC asking if glitch should have been caught By Jessica Toonkel and John McCrank ...

The markets don't belong only to people like Mr. Joyce; they should and must belong as well to individual investors. Congress and the regulators must recognize that action is long overdue.

Our stock markets have been hijacked and are coming apart, unsafe at any speed for any investor. That's the message that the $440 million scandal at Knight Capital Group is telling us.

They want to think that machines are biddable and programs run smoothly. But with traders and market makers creating and deploying new systems and algorithms constantly, the danger of something going wrong is inevitable.

This is what it looks like when the robots take over the stock market.

The U.S. markets are on the edge of chaos right now. We've been seduced by the technological beauty of these intricately interwoven systems but are now being betrayed by the chaos and non-linearity of their interactions with each other.

You might think the experience of pulling Knight Capital out of the flaming wreckage of its high-speed trading crash might make Wall Street finally see the need for regulation of high-speed trading. You would of course be dead wrong.

Aug 6 (Reuters) - The rescue deal that Knight Capital struck with a group of investors was "absolutely" the best it could have done, Chief Executiv...

* Investors get 70 percent-plus in company * Analyst says company likely to be broken up * CEO: Too soon to say if firm ...

Aug 3 (Reuters) - Knight Capital Group Inc has told brokers that it has obtained a line of credit, which will allow it to operate for the day, the W...

Thing One: The Never-Ending Knightmare: Knight Capital, the firm that lost $440 million from mistaken trades earlier this week, is learning the value ...

Maybe this is the fastest way to get high-frequency trading robots to stop ruining our stock market: Have them destroy each and every trading company that operates them.

* Huge volume in small stocks roils markets * Knight cites "technology issue" in market-making unit * Knight's stock plu...

By John McCrank and Ashutosh Pandey (Reuters) - Electronic trader Knight Capital Group said it suffered a pre-tax loss of $30 million t...