By FERNANDEZ

Death-penalty states are finding it harder to carry out executions as they struggle to obtain and properly use limited supplies of ever-changing combinations of suitable drugs.

Overwhelmed by an influx of unaccompanied minors who are fleeing violence in their home countries in Central America, federal officials are searching the country for places to house them and have been forced to scrap some proposed shelter sites in California, Connecticut, Iowa, New York and other states because of widespread opposition from residents and local officials, some of it extreme.