But it's just not practical, it's not possible, it's not safe for them to do that.

BBC: Obesity rates fall in Philadelphia

When it's not practical no-one should expect us to.

BBC: Cook accused of dumping ethical policy

Here you cannot do the entire trip from home to work by bicycle, it's just not practical.

BBC: Mexico City's bike revolution

"It's just not really practical for anything besides emailing, " she says.

WSJ: Double Mobile-Phone Users Like iPhone for Image, BlackBerry for Email

Now it's not in the House version of either bill, and as a practical matter it'll probably stay in one, come out of the other.

NPR: Political Fireworks Erupt in Washington over Iraq

It disagrees that the practical Sikh response to the downtrodden did not match the Sikh faith's core beliefs of equality.

CNN: India's 'untouchables' declare own religion

It's a career that has given her not only a sweeping overview of the American judicial system, but a practical understanding of how the law works in the everyday lives of the American people.

CNN: Transcript of Obama-Sotomayor announcement