<US struck alleged drug boat> second time _to kill survivors, sources say


<Thousands of passenger planes need> _to be fixed _to avoid pilots losing control _during a solar storm


<Louvre museum> _to hike entrance fee _by 45% _for non-European visitors


<Elderly nuns _who broke back _into their convent will be allowed> _to stay. 

But <there are conditions>


<A visual timeline> _of how <the fire _in Hong Kong grew and consumed seven high-rise towers>