What is causing the extreme heat in US? July 17, 2011 Msnbc’s Richard Lui talks with conservation biologist Reese Halter about the record setting heat in July. (msnbc tv)

Study: Internet use affects memory July 17, 2011 A new study shows that search engines are changing the way we learn and remember things. Msnbc’s Richard Lui talks with Columbia University professor Betsy Sparrow. (msnbc tv)

The week’s highlights July 17, 2011 Thomas Voeckler, Mark Cavendish and a series of crashes highlighted Week 2 of the 2011 Tour. (NBC Sports)

The week’s highlights July 17, 2011 Thomas Voeckler, Mark Cavendish and a series of crashes highlighted Week 2 of the 2011 Tour. (NBC Sports)

Farrar is upset July 17, 2011 Second-place finisher Tyler Farrar is upset following Mark Cavendish’s Stage 15 win. (NBC Sports)

Stage 15 recap July 17, 2011 HTC-Highroad’s team brilliantly led sprinter Mark Cavendish to a Stage 15 win. (NBC Sports)

MTP Summit on Jobs and Economy July 17, 2011 Ohio Governor John Kasich (R); Chairman and CEO of Honeywell, David Cote; former mayor of New Orleans, now president of the National Urban League, Marc Morial; Chief Economist for Mesirow ...

TODAY’s Taste Test: Playing Ketchup July 17, 2011 Ketchup, that all-American condiment, has it all – sweet, salty, tangy. But which brand is tops? Julia Collin Davison of Cook’s Country magazine stops by TODAY’s kitchen with the winners of the ...

Stage 15 intermediate sprint July 17, 2011 Mark Cavendish is among several sprinters to gain significant sprint points. (NBC Sports)

Stage 15 intermediate sprint July 17, 2011 Mark Cavendish is among several sprinters to gain significant sprint points. (NBC Sports)

Jobs and Economy: Is it about leadership? July 17, 2011 Gov. John Kasich (R-OH) says there’s a “crisis of leadership in America” which increases the jobs problem. Marc Morial insists “we need a jobs plan.” David Cote, Diane Swonk and David Faber share ...

Roundtable: Tax policy, simplification July 17, 2011 Marc Morial thinks the “tax earmark business is bigger than the spending earmark business,” and businessman David Cote says to make tax policy “the most simple, easy-to-do thing.” Gov. John ...

David Post-Show: debt obscures jobs talks, ... July 17, 2011 How has the debt debate obscured the government’s focus on jobs? Also, Sen. Jim DeMint (R-SC) seemed so focused on a balanced-budget amendment even though Sen. Dick Durbin (D-IL) and many seem ...

Trends, takeaways: Debt debate July 17, 2011 Gov. John Kasich (R-OH), Marc Morial, David Cote, Diane Swonk and David Faber look at the headlines generating the most buzz this morning. (Meet the Press)

One-on-one with WH Budget Director Lew July 17, 2011 Director of the Office of Management and Budget Jack Lew talks about what’s going on behind the closed door budget negotiations. (Meet the Press)

Durbin, DeMint on balanced-budget amendment July 17, 2011 Sen. Jim DeMint outlines his support for a balanced-budget amendment, but Sen. Dick Durbin (D-IL) says the “notion that we somehow have to change the Constitution to do what we were elected to do ...

DeMint: “Country is on course for a financial ... July 17, 2011 Tea party favorite Sen. Jim DeMint says he and other Republicans are “willing to compromise” to avoid financial disaster, but also says they’ve “got to draw a line in the sand because the day of ...

Durbin: minimizing impact of default ‘outrageous’ July 17, 2011 Sen. Dick Durbin (D-IL)points to GOP candidates who are saying “highly irresponsible” things that minimize the impact of a default. Sen. Durbin (R-SC) responds by saying Congress “can’t vote on a ...

One-on-one with Sen. DeMint, Sen. Durbin July 17, 2011 Sen. Jim DeMint (R-SC) and Sen. Dick Durbin (D-IL) debate raising the debt ceiling and the various plans on the table. (Meet the Press)

Lew: Leaders agree ‘we can’t push to a default’ July 17, 2011 Director of the Office of Management and Budget Jack Lew says there are many conversations going on to make sure the U.S. doesn’t default on Aug. 2 because a default would “put a cloud over the ...