MACCLESFIELD, CAMBRIDGESHIRE - MAY 07:  A general view of buildings and signage at the Macclesfield Campus of pharmaceutical company AstraZenica on May 7, 2014 in Macclesfield, United Kingdom. The proposed takeover by American pharmaceutical giant Pfizer of its British rival AstraZeneca has led to the UK Business Secretary Vince Cable addressing Parliament to affirm the government's commitment to securing British science jobs.  (Photo by Christopher Furlong/Getty Images)