The U.S. government sued AT&T Inc (T.N) on Tuesday, alleging the No. 2 U.S. wireless carrier sold consumers unlimited data plans but would reduce their Internet speeds once they exceeded a certain amount of data.
Pfizer Inc's finance chief said on Tuesday that new rules by the U.S. Treasury will make it "prohibitively harder" for American companies to buy foreign firms in order to relocate to lower-tax jurisdictions.
The U.S. Securities and Exchange Commission is examining how private equity firms report a key metric of their past performance when they market new funds to investors, as the regulator boosts its scrutiny of the industry, according to people familiar with the matter.