Larry Dawson

Police shot an armed man at an entrance of the US Capitol visitor center on Monday, sparking panic during the busy spring tourist season in a city on heightened alert following terror attacks in Brussels.

By separating moonshots from moneymakers, Google founders Larry Page and Sergey Brin are now free to pursue more quixotic business ideas such as glucose-monitoring contact lenses, Internet-connected, high-altitude balloons and even immortality.

Police shot an armed man at an entrance of the US Capitol visitor center on Monday, sparking panic during the busy spring tourist season in a city on heightened alert following terror attacks in Brussels.

By separating moonshots from moneymakers, Google founders Larry Page and Sergey Brin are now free to pursue more quixotic business ideas such as glucose-monitoring contact lenses, Internet-connected, high-altitude balloons and even immortality.