Collection occurs when Internet services transmit the data during routine activity such as composing a message, The Washington Post reports.
The Justice Department presents a draft e-mail it says proves collusion on e-book prices, but Apple responds with e-mail it says was actually sent that contained different content and tone.
Vagaries of federal surveillance law, enacted in 1968 and updated in 1986, favor lots of e-mail snooping over only a little.
Democratic Sen. Mark Udall says the Justice Department should not allow FBI agents to peruse Americans' private communications without obtaining a search warrant from a judge.
Documents suggest IRS lawyers don't think a search warrant is needed for obtaining e-mail, burglars steal user data from video service Vudu, and T-Mobile touts trade-in program before its iPhone 5 launch.
But the administration will tell Congress tomorrow that the feds need more surveillance powers over e-mail messages, Twitter direct messages, and Facebook direct messages in other ways.
Should the social network be able to contest a search warrant on behalf of its users? That issue is now being debated in court.
Committee votes to update a 1986 privacy law despite warnings from one senator that his colleagues are "abdicating our duty if we do not examine the concerns raised by federal and state law enforcement."
Privacy groups cautiously applaud, but are concerned about a requirement that would force Internet companies to notify police before letting customers know they're under surveillance.
The Mannheim Regional Court says that Apple must pay Motorola Mobility damages, but according to a report, it didn't specify how much that would be.