LOS ANGELES (AP) — Federal authorities failed to follow through on plans earlier this year to burn away highly flammable brush in a forest on the edge of Los Angeles to avoid the very kind of wildfire now raging there, The Associated Press has learned.The U.S. Forest Service said that months before the huge blaze erupted, it obtained permits to burn away the undergrowth on more than 1,700 acres of the Angeles National Forest. But just 193 acres had been cleared by the time the fire broke out, the agency said.The agency defended its efforts, saying weather, wind and environmental rules tightly limit how often these “prescribed burns” can be conducted.—-Contact The Daily Reveille’s news staff at [email protected]