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One police officer is dead and two seriously wounded after a shooting on Paris' famous Champs Elysees, in an incident that left one attacker dead. The assailant reportedly targeted a police vehicle. Authorities say a bystander was also wounded.

French prosecutor Francois Molins said the authorities have identified the shooter and are assessing whether the attacker had accomplices. Raids and searches were ongoing, Molins said.

It may soon become harder for immigrants to become Australian citizens. Prime Minister Malcolm Turnbull proposed sweeping changes Thursday.

Turnbull said applicants would need to be permanent residents for four years — three years longer than the current wait — show higher English competency and display even more evidence of integration through work or school and "respect for women and children."

The French go to the polls Sunday to cast ballots in the first round of a political race like no other in France's recent history: Entrenched politicians have been swept aside, with fringe candidates and untested newcomers filling the void.

After Sunday, the field of 11 presidential candidates will be narrowed down to two contenders, who will face each other in a runoff on May 7.

The top four candidates offer starkly opposing visions for the country. Yet they are so close in the polls that the race is impossible to predict.

The United States spends the most on health care per person — $9,237 – according to two new papers published in the journal The Lancet.

Somalia spends the least – just $33 per person.

Marie da Silva is among the 25 percent of voters who are undecided ahead of Sunday's first round of voting in France's crucial presidential election.

The 52-year-old building manager and mother has soured on the men in the race, finding them too weak, unrealistic or communist.

Though she identifies as conservative, da Silva had never voted for the far-right party, National Front.

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And I'm Steve Inskeep with a guide to this day's news. David, where do we start?

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