llegal Entry From Mexico to U.S. Spikes 57 minutes ago By OLGA R. RODRIGUEZ, Associated Press Writer SASABE, Mexico - After a four-year decline, illegal immigration from Mexico is spiking as several thousand migrants a day rush across the border in hopes of getting work visas under a program President Bush (news - web sites) proposed. Many also are trying to beat tighter security to come in June. The U.S. border patrol told The Associated Press that detentions — which it uses to judge illegal migration rates — jumped 25 percent to 535,000 in the six months ending March 31...