With life in the capital back to normal, residents who have been evacuated from their homes urge the public not to forget them.
A storm on Sunday complicated the search for the navy submarine missing in the South Atlantic with 44 crew members, but relatives are hopeful that their loved ones will be found alive.
Pinera garnered international attention for his handling of the dramatic rescue of trapped miners in 2010, and is seen as a safe pair of hands by investors. But his administration was marred by massive student protests seeking an education overhaul.
The administration said a legal provision was contravened that says the Palestine Liberation Organisation cannot operate a Washington office if they try to get the International Criminal Court to prosecute Israelis for crimes against Palestinians.
Tijuana is home to more than 100,000 deportees and for many, the annual border ceremony is an opportunity for protest as well as celebration.
The last confirmed location of the German-built ARA San Juan navy submarine was 432 km (268 miles) off Argentina's southern Atlantic coast early on Wednesday.
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