With a bipartisan group of senators expected to unveil immigration-reform legislation in the next few days, there are many issues at stake. Security along the U.S.-Mexico border has been one of the most thorny issues for immigration reform.
NBC News' Mark Potter has done extensive reporting along the U.S.-Mexico border. He answered reader questions about border security earlier today.
Click on the box below to replay the informative chat.
&lt;a href="http://www.coveritlive.com/mobile.php/option=com_mobile/task=viewaltcast/altcast_code=2f08a034c2" _mce_href="http://www.coveritlive.com/mobile.php/option=com_mobile/task=viewaltcast/altcast_code=2f08a034c2"&gt;LIVE Chat: Mark Potter answers questions on border security and immigration&lt;/a&gt;