WASHINGTON - Applying for benefits under President Barack Obama's health care overhaul could be as daunting as doing your taxes. The government's draft application runs 15 pages for a three-person family. An outline of the online version has 21 steps, some with additional questions. Seven months before the Oct. 1 start of enrollment season for millions of uninsured Americans, the idea that getting health insurance could be as easy as shopping online at Amazon or Travelocity is starting to look like wishful thinking. At least three major federal agencies, including the IRS, will scrutinize your application. Checking your identity, income and citizenship is supposed to happen in real time, if you apply online.