He also said that the recently announced break-up of the UK Border Agency, which will once again be placed under direct ministerial control at the Home Office, was a good start but must not be simply "a re-branding exercise or a short-term fix to try to contain the campaigning zeal of UKIP", he said.

BBC: Keith Vaz warns of immigration 'arms race'

Jerusalem (CNN) -- In a highly symbolic break with previous policy, Egypt reopened its border crossing into Gaza on Saturday, opening the door for Palestinians to the outside world and raising fears among some Israelis that militant attacks will increase.

CNN: Egypt reopens border with Gaza

The renewed push for stronger law-enforcement presence along the border comes as the administration tries to help the Mexican government break up drug cartels blamed for killing some 6, 500 people in Mexico last year, Napolitano said.

CNN: Obama to beef up Mexico border policy