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Morning Money Memo:

Twitter is suing the FBI and the Department of Justice to be able to release more information about government surveillance of its users. The social media company filed a lawsuit in a California federal court Tuesday to publish its full "transparency report," which documents government requests for user information. Twitter published a surveillance report in July but couldn't include the exact number of national security requests it received because Internet companies are prohibited from disclosing such information, even if they didn't get any requests. Twitter says it should be entitled under the First Amendment to "respond to our users' concerns." The federal government has been able to access phone networks and high-speed Internet traffic for years to catch suspected criminals and terrorists. The FBI also started pushing technology companies like Google, Skype and others to guarantee access to their data streams and grab emails, video chats, pictures and more. Technology companies say they turn over information only if required by court order, and in the interest of transparency with their customers, want to share information about the government's activities.

Some warehouse workers who fill orders for Amazon.com customers say they spend up to 25 minutes after every shift waiting to pass through security checks to make sure they aren't stealing from the online retailer. But they don't get paid for the extra time. The U.S. Supreme Court hears arguments today in a lawsuit filed by former staffers at a Nevada warehouse who claim they should be compensated for time spent in security screenings under the Fair Labor Standards Act. A ruling in their favor could force employers to spend billions of dollars in retroactive pay and increase costs for companies that have expanded security measures to curb employee theft. Amazon doesn't comment on pending litigation, spokeswoman Kelly Cheeseman told Bloomberg News.

The stock market suffered its biggest one-day loss in two months as worries grow about a possible slowdown for the global economy. The Dow Jones Index fell 1.6 percent, or 273 points, in its fourth biggest drop this year. The International Monetary Fund trimmed its outlook for this year and next, mostly because of weaker expansions in Japan, Latin America and Europe. By comparison, the U.S. economy looks strong. The Federal Reserve is due to release notes on its latest meeting today. Investors will be looking for signs of when the Fed might raise interest rates.

More students than ever are borrowing thousands of dollars to pay for the cost of college. And the average debt load has more than doubled "from about $12,000 in the class of '93 to almost $27,000 in the class of 2012," says Richard Fry, senior economist at the Pew Research Center. The study also says many more upper- income students are going into debt to pay for the cost of college.

U.S. consumers are still cautious about spending money. The Federal Reserve says consumers increased their borrowing in August in the category that covers auto loans and student loans but cut back on their credit card borrowing. The report says overall borrowing rose $13.5 billion in August after a revised $21.6 billion increase in July. The gains have pushed total consumer debt to a record level of $3.25 trillion.

Richard Davies Business Correspondent ABC News Radio abcnews.com Twitter: daviesnow