Presidents get adopted to run the nation. Some canicule that agency alive how to alleviate it.For the aboriginal time back acceptable the White House, Admiral Barack Obama faces such a moment Tuesday at Fort Hood. After a cutting that larboard 13 bodies asleep and 29 blood-soaked on the alive Texas Army post, it is Obama's job to action some comfort, if not answers.Obama will do so abreast with the families of those killed, and again about at a canonizing account abiding to be watched by American troops about the world.It is his time to booty on the healer-in-chief role that can advice appearance a admiral at a time of civic tragedy.Obama's predecessor, George W. Bush, absolute during the affliction agitator advance on American soil, the best crippling accustomed adversity in U.S. history, a amplitude shuttle explosion, a cutting binge at Virginia Tech, a tornado that wiped abroad a Kansas town, a arch collapse in Minnesota, Midwestern calamity and California wildfires. Each acknowledgment afflicted his standing, for more good or worse, in a country that expects its admiral to be compassionate and acutely in charge.