The Obama administration is engaged in a fierce debate over whether to supply weapons to the rebels in Libya, senior officials said on Tuesday, with some fearful that providing arms would deepen American involvement in a civil war and that some fighters may have links to Al Qaeda. The debate has drawn in the White House, the State Department and the Pentagon, these officials said, and has prompted an urgent call for intelligence about a ragtag band of rebels who are waging a town-by-town battle against Col. Muammar el-Qaddafi, from a base in eastern Libya long suspected of supplying terrorist...