不满持续！美国国土安全部长在“警笛和抗议声中”发表讲话，声音几乎被杂音淹没……

Core Viewpoint - The visit of Homeland Security Secretary Kirstjen Nielsen to the southern border of California was overshadowed by protests and noise, highlighting the contentious atmosphere surrounding border security and drug enforcement efforts under the Trump administration [1][3]. Group 1: Event Details - Secretary Nielsen's press conference lasted approximately 20 minutes, during which she struggled to be heard over the loud sirens and protest chants from the crowd [1]. - Protesters were heard shouting "shame! shame! shame!" prior to and during Nielsen's speech, indicating significant public dissent [1][3]. - The presence of multiple law enforcement vehicles and the sound of sirens were likely employed by local authorities to drown out the protests [3]. Group 2: Political Context - The backdrop of Nielsen's speech included boxes and bags that appeared to contain illegal drugs seized by the government, emphasizing the focus on drug enforcement [3]. - Following ongoing protests against federal actions on illegal immigration, some Democratic members of the House and a few Republican senators called for Nielsen's resignation or impeachment [3]. - President Trump defended Nielsen's performance, asserting that she was doing a "fantastic job" and claimed that the border is now "completely secure" [3]. Group 3: Legislative Developments - On February 12, the U.S. Senate failed to advance a funding bill for the Department of Homeland Security, which is facing a potential shutdown as temporary funding is set to expire [4].