Week in Review: Just CC the Justice Department on Those E-Mails

David Einhorn sues Apple over its plan for stocks. | E-mails imply JPMorgan knew some mortgage deals were bad. | A guilty plea and a big fine for the Royal Bank of Scotland in the rate-rigging case. | Big law firms are backing away from trusts and estates. | S.&P. e-mails on the mortgage crisis show alarm and gallows humor. | Taking Dell private is the biggest challenge yet for its founder. | Investors seek Herbalife’s elusive sales data.

A look back on our reporting of the past week’s highs and lows in finance.

Taking Dell Private Is the Biggest Challenge Yet for Its Founder | Michael S. Dell is gambling that he can respond to rapid change in technology by taking his company private, Michael J. de la Merced and Quentin Hardy reported. DealBook Â'

• Dell Takeover by Its Founder and Partners | The deal, for more than $23 billion, includes financial muscl from Microsoft and the investment firm Silver Lake. DealBook Â'

Deal Professor: Corporate Forces Endangered the Twinkie, but May Save It | Steven M. Davidoff says that while questionable management helped bring down Hostess Brands, bankruptcy may be the salvation of one of its most prominent brands. DealBook Â'

Liberty Global Reaches Deal for Virgin Media That May Inflame Old Rivalry | John Malone’s cable company has agreed to to take over a British cable company that competes with British Sky Broadcasting, Mark Scott and Eric Pfanner reported. DealBook Â'

Credit Suisse Returns to Profit and Plans to Cut More Costs | Switze! rland’s second-biggest bank said it would increase its cost-cutting target by $440 million, to $4.83 billion, by the end of 2015, Julia Werdigier reported. DealBook Â'

UBS Posts $2 Billion Loss Tied to Legal Settlements | The Swiss bank reported a loss of 1.9 billion Swiss francs for the fourth quarter of 2012, compared with a profit of 323 million francs in the period a year earlier, Ms. Werdigier reported. DealBook Â'

Barclays Sets Aside $1.6 Billion More for Legal Costs | British politicians sharply questioned senior Barclays executives about the culture and past failures at the British bank, Mr. Scott and Ms. Werdigier reported. DealBook Â'

| The chief financial officer and general counsel are the latest departures after the British bank’s involvement in a series of scandals, Ms. Werdigier reported. DealBook Â'

Investor Sues Apple Over Plan for Stocks | A surprising declaration by the billionaire hedge fund manager David Einhorn adds to the growing dissatisfaction with Apple and its once-soaring stock, Mr. de la Merced reported. DealBook Â'

• Einhorn’s Apple Suit Fits a History of Public Calls | Mr. Einhorn made his name publicly challenging big companies like Lehman Brothers. William Alden looks at some of his moments in the spotlight. Deal! Book Â'

Seeking a Company’s Elusive Sales Data | Uncertainty over who buys Herbalife products has left shares of the company vulnerable to wild market swings in recent months, Peter Eavis reported. DealBook Â'

Helping Start-Ups With Local Support and National Networks | Startup America Partnership, a nonprofit organization started in January 2011, seeks to offer entrepreneurs practical help, like brainstorming and connecting with clients in other states, Sarah Max reported. DealBook Â'

Court Hears Arguments Over Rejected Citigroup Settlement | Lawyers for the Securities and Exchange Commission and Citigroup argued that Judge Jed S. Rakoff exceeded his authority in rejecting a settlement, Mr. Lattman reported. DealBook Â'

4 Years After Crisis, Ireland Strikes Deal to Ease a Huge Debt Load | The Irish government reached an agreement with the European Central Bank to give the country more time to repay some of those loans, Mr. Scott reported. DealBook Â'

E-Mails Imply JPMorgan Knew Some Mortgage Deals Were Bad | E-mails and employee interviews filed as part of a lawsuit show that JPMorgan Chase flouted quality controls as it bundled mortgages into complex financial instruments, Jessica Silver-Greenberg reported. DealBook Â'

Guilty Plea and Big Fine for Bank in Rate Case | American and British authorities struck a combined $612 millio! n settlem! ent with the Royal Bank of Scotland and the Justice Department forced its Japanese unit to plead guilty to criminal wrongdoing, Ben Protess and Mr. Scott reported. DealBook Â'

• R.B.S. Fine a Burden for the Bank’s Majority Owner, British Taxpayers | The Financial Services Authority’s share of the fine is expected not to come from bonuses. DealBook Â'

The Trade: The 0.03% Solution to Washington’s Budget Problems | Jesse Eisinger of ProPublica says that a financial transactions tax would take a 3-cent nip out of every $100 traded, and raise billions. DealBook Â'

Cravath Hires Former Director of the Patent Office | In hiring te departing director of the patent office, Cravath, Swaine & Moore signaled the importance of government policy to powerful law firms, Peter Lattman reported. DealBook Â'

S.&P. E-Mails on Mortgage Crisis Show Alarm and Gallows Humor | Correspondence made public in court documents provides a glimpse at the inner workings of an institution that the Justice Department says fraudulently inflated credit ratings, Mary Williams Walsh and Ron Nixon reported. DealBook Â'

• U.S. Contends S.&P. Purposely Used Faulty Models | The Justice Department’s suit says computer programs assessing risk were manipulated to ensure high ratings and big profits, Peter Eavis reported. DealBook Â'
• U.S. Accuses S.&P. of Fraud in Suit on Loan Bundles | The Justice Department accused the firm of inflating the ratings of mortgage investments and setting them up for a crash, Ms. Walsh and Andrew Ross Sorkin reported. DealBook Â'

Big Firms Back Away From Trusts and Estates | Debevoise & Plimpton’s move to get out of trusts and estates comes as the legal industry continues to emphasize more profitable practices, Mr. Lattman reported. DealBook Â'

Plan Could Allow Forced Splits of British Banks | The chancellor of the Exchequer said that regulators would be able to forcibly separate firms that failed to maintain a division between retail banking and risky trading, Mr. Scott reporte.. DealBook Â'

New Details Suggest a Defense in SAC Case | Internal records could cast doubt on the way a trade involving a former portfolio manager has been portrayed by authorities, Mr. Sorkin and Mr. Lattman reported. DealBook Â'

“Private Eyes” by Hall and Oates

Financial Advice From Hall and Oates | Wall Street bankers, before you write that hilarious e-mail about the housing crisis or send that instant message about cows remember that “private eyes they’re watching you. They see your every move.”