generation of radar, one expert calling it a matter of life and death. and a grandmother brutally bullied on a school bus. right now though through the power of social media an unbelievable outpouring of sympathy and cash. we ll update you on what s going on. i m wolf blitzer. you re in the situation room. they were a critical part of his winning coalition in 2008. and this year president obama needs latino voters more than ever as he faces a very tough re-election campaign. just a few hours ago the president addressed one of the country s largest hispanic conventions laying out his vision not only for immigration reform, but also for the country s economic future. our chief white house correspondent, jessica yellin, is traveling with the president in florida. jessica, after a surprise move last week ending deportations for some illegal immigrants brought to the united states as children, did the president use that and more to politically go after mitt romney? reporte